CN103236626A - Device and method for realizing optical cage - Google Patents
Device and method for realizing optical cage Download PDFInfo
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- CN103236626A CN103236626A CN2013101449831A CN201310144983A CN103236626A CN 103236626 A CN103236626 A CN 103236626A CN 2013101449831 A CN2013101449831 A CN 2013101449831A CN 201310144983 A CN201310144983 A CN 201310144983A CN 103236626 A CN103236626 A CN 103236626A
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- round table
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Abstract
The invention discloses a device and a method for realizing an optical cage, belongs to the field of optics and optical engineering, constructs and provides the device and the method for forming the optical cage of which the output light beams are distributed in space. The optical cage has the characteristic of rotary symmetrical distribution. According to the device, an inner hollow truncated cone-shaped gas laser resonant cavity and an outer hollow truncated cone-shaped gas laser resonant cavity are nested in the same direction, the cavity parameters of the two resonant cavities are reasonably set, hollow parts of the hollow light beams output by the two resonant cavities are overlapped in a transmitting space, and a solid space of which the optical field is zero is distributed in the light beam space and is three-dimensionally wrapped in all the directions by a laser light field of which the strength distribution is not zero to form the optical cage. By the method and the device, distribution of low power in a micro size and high power in a large size can be realized. The micro-size and low-power optical cage can be applied to study on biomedical science and science, and the large-size and high-power optical cage can be applied to industrial application, national defense and the like.
Description
Technical field
The present invention relates to optics and optical engineering field, mainly is the apparatus and method that obtained to have the gas laser light beam that light cage type shape distributes by the gas laser with two inside and outside nested in the same way hollow round table resonant cavitys.
Background technology
In the Laser Biomedicine research field, hollow beam optics spanner, light tweezer cool off to particulate control or to atom with realization.Patent ZL200910216214.1 makes up and provides a kind of scheme of utilizing laser directly to export the laser beam of special space distribution shape, the position of this laser beam hollow parts is more farther apart from outgoing mirror than the position of the hollow parts of the light beam of patent ZL200710048328.0 realization, and is therefore more practical.The spatial distribution of the output beam of the laser of patent ZL200910216214.1 is along with the increase of transmission range, and developing from hollow beam is solid light beam, and developing is hollow beam again.The spatial distribution of the output beam of the laser that patent ZL200910216214.1 makes up, more far away apart from solid section, hollow size is more big, therefore the small size hollow beam of this laser realization can only be realized the two dimension imprison to particulate, and the large scale hollow beam that this laser is realized can only be realized two-dimensional constrains to sample.
Summary of the invention
This patent is at the method and apparatus that particulate is imprisoned preferably of patent ZL200910216214.1 invention, purpose is to make up and provide a kind of spacial distribution of output beams shape the gas laser of light cage to occur, it is zero solid space that one light field appears in the light beam spatial distribution of this laser output, this solid space is formed the light cage by the three-dimensional parcel of the non-vanishing laser light field omnidirectional three-dimensional of intensity distributions.The present invention has not only inherited patent ZL200710048328.0 and has directly produced hollow light beam and gas laser good beam quality, advantage that directivity is stable; Also inherited beam waist spot position that patent ZL200910216214.1 produces and be positioned at and output beam increases with transmission range in the chamber outside, developing from hollow beam is solid light beam, and evolution is the characteristics of hollow beam again; And overcome the spatial distribution of the output beam that patent ZL200910216214.1 produces, more far away apart from solid section, hollow size is more big, thereby the hollow beam realized of this laser can not be realized the shortcoming of comprehensive imprison to particulate.Device of the present invention rationally arranges the chamber parameter of two resonant cavitys owing to adopt inside and outside two hollow round table resonant cavitys nested in the same way, makes the hollow parts of output beam of inside and outside two hollow round table resonant cavitys overlapping in the space, forms the light cage.Size and the power of appropriate design light cage can be realized the three-dimensional control of particulate omnidirectional three-dimensional.This invention can realize high power output in microsize small-power and the large scale.The microsize small-power situation that this invention realizes can be used for Laser Biomedicine, scientific research; In realizing, high-power smooth cage, can be used for special processing even the national defence of material.
The objective of the invention is to be implemented by following measure: the device of realizing the light cage is gas laser, be divided into helium neon laser and carbon dioxide laser by working-laser material, employing is easy to realize at special-shaped region of discharge the radio frequency discharge mode of glow discharge, laser is characterised in that its resonant cavity is by interior, outer two hollow round table resonant cavitys are nested in the same way, the bottom of each hollow round table resonant cavity is the symmetrical concave surface annulus total reflective mirror of rotation, outgoing mirror is partly reflected for the symmetrical convex surface annulus of rotation in the top of each hollow round table resonant cavity, the laser medium zone of each hollow round table resonant cavity is the hollow round table interlayer zone that the equal hollow round table shape material of two drift angles is nested to form, in, the central axes of outer two hollow round table shape areas of dielectric, be positioned at the concave mirror of each resonant cavity bottom and the convex mirror at top and all rotate symmetry about this central axis, each resonant cavity is along bunch formation two concavo-convex stable cavities of the transmission ray in the vertical section of this central symmetry axes, each concavo-convex stable cavity is called the sub-chamber of hollow round table resonant cavity separately, the chamber axle in this sub-chamber and the central axis in laser medium district intersect, and the waist spot position of the sub-chamber output beam of each hollow round table resonant cavity can be arranged on outgoing mirror separately and separately between the intersection point of the axis of symmetry in sub-chamber and self laser medium district center axis as required, also can overlap with this intersection point or outside.The laser of Gou Jianing has all advantages of patent ZL200910216214.1 like this.Rationally arrange, in making the output beam of hollow round table resonant cavity from solid section develop output beam for the zone of hollow parts and outer hollow round table resonant cavity from the hollow parts evolution for surrounding in the zone of solid section, the light field that the three-dimensional parcel of laser three-D occurs is zero zone, namely forms the light cage.The light cage that the present invention realizes can be used for Laser Biomedicine research such as particulate being realized the three-dimensional imprison of omnidirectional three-dimensional or control under microsize small-power situation, powerful He-Ne Lasers can be used for the photodynamics medical treatment target site is realized that light beam wraps up entirely, and the high power carbon dioxide laser can realize that laser wraps up entirely to extraterrestrial target in the large scale.
The discharge tube of helium neon laser adopts glass or quartz.The discharge tube of carbon dioxide laser can adopt quartz, insulating material or part to adopt insulating material partly to adopt as the electrode metal material, large-scale carbon dioxide laser adopts rf discharge excitation or preionization energisation mode, working method is continuous, adopt blower fan to drive the working gas water cooling method of holding concurrently, when carrying out pulsed discharge when radio-frequency power supply is modulated, working method is pulse.
Description of drawingsFig. 1,2,3 is respectively apparatus structure stereogram, device section and the light path schematic diagram of realizing the gas laser of light cage, the sign picture that installs section and light path schematic diagram, and Fig. 4 also is device section sign picture, and Fig. 5 is light cage section sign picture.
In the accompanying drawings among the 1-3, the 0th, the radio-frequency power supply of interior hollow round table resonant cavity and matching network, the 1st, the rotation symmetry concave surface annular total reflective mirror of outer hollow round table resonant cavity, can be called for short outer total reflective mirror 1, the 2nd, anode, the 3rd, the hollow round table shape discharge tube of outer hollow round table resonant cavity, can be called for short outer discharge tube 3, the 4th, external electrode, the 5th, water collar, the 6th, the rotation symmetry convex surface annular partially reflecting mirror of outer hollow round table resonant cavity, can be called for short outside sub reflector mirror 6 or outer outgoing mirror 6, the 7th, blower fan, the 8th, the radio-frequency power supply of outer hollow round table resonant cavity and matching network, the 9th, cylinder, the 10th, interior electrode, the 11st, the rotation symmetry concave surface annular total reflective mirror of interior hollow round table resonant cavity, total reflective mirror 11 in can being called for short, the 12nd, the hollow round table shape discharge tube of interior hollow round table resonant cavity, discharge tube 12 in can being called for short, the 13rd, the rotation symmetry convex surface annular partially reflecting mirror of interior hollow round table resonant cavity, partially reflecting mirror 13 or interior outgoing mirror 13 in can being called for short, 1 and 11 all is with respect to optical axis 17 rotational symmetric concave mirrors, all in the chamber, 6 and 13 all is that convex surface is all in the chamber with respect to optical axis 17 rotational symmetric convex mirrors to concave surface, mirror 1 and mirror 6 are the length of outer hollow round table resonant cavity discharge tube 3 along 15 distance, and mirror 11 and mirror 13 are the length of interior hollow round table resonant cavity discharge tube 12 along 16 distance.When being used for helium neon laser, in the accompanying drawing 1,5 and 7 need not arrange.17 is the central axis in inside and outside truncated cone-shaped gas laser medium district among Fig. 3, it also is the optical axis of this laser light path figure, 15 is the center circle conical surface in outer hollow round table shape gas medium district and the intersection in vertical section, also be the axis of light bunch in this vertical section and outer hollow round table resonant cavity at the chamber, sub-chamber of this cross-sectional area axle, the optical axis of the upper and lower sub-chamber output beam of exterior resonant cavity meets at O
2, chamber axle 15 also is positioned at O with the intersection point of optical axis 17
2,
θ 2Drift angle for the outer hollow round table resonant cavity center circle conical surface, 16 is the center circle conical surface in interior hollow round table shape gas medium district and the intersection in vertical section, also be light bunch in this vertical section axis and in the hollow round table resonant cavity at the chamber, sub-chamber of this cross-sectional area axle, the optical axis of the upper and lower sub-chamber output beam in interior resonance chamber meets at O
1, chamber axle 16 also is positioned at O with the intersection point of optical axis 17
1,
θ 1For the drift angle of the interior hollow round table resonant cavity center circle conical surface, in section, chamber, the last sub-chamber axle 15 of outer hollow round table resonant cavity and chamber, the following sub-chamber axle of interior hollow round table resonant cavity meet at a C
1, chamber, the last sub-chamber axle 16 of the following sub-chamber chamber axle of outer hollow round table resonant cavity and interior hollow round table resonant cavity meets at a C
2Point O
1And O
2Do not overlap some C
1And C
2Heavy and.Among Fig. 4
L 1With
L 2The chamber that is respectively inside and outside thorax chamber is long,
R 111With
R 112Be respectively the inside and outside edge radius of intracavity bottom total reflective mirror 11,
R 211With
R 212Be respectively the inside and outside edge radius of exocoel bottom total reflective mirror 1,
aThickness for inside and outside thorax chamber.Fig. 5 is the profile of light cage, and the vertical section of light cage is positioned at O
1O
2C
1C
2Surround the intra-zone of formation, this vertical section rotates a circle around central axis 17 and namely forms the light cage that the present invention need realize.The dark major axis of light cage is along O
1O
2Direction and at an O
1With an O
2Between, compare O
1O
2Between distance little, the dark minor axis axle of light cage is along C
1C
2Direction and at a C
1With a C
2Between, compare C
1C
2Between distance little.When interior, after being pumped into vacuum, outer discharge tube 12 and 3 charges into gas laser medium, respectively by electrode 2 and 10, and 2 and 4 rf discharge excitation gas medium, along in arbitrary section as shown in Figure 3, the axis 16 in my husband chamber, the spontaneous radiation of 15 transmission is excited to be exaggerated, the back reflective that comes that is subjected to chamber mirror separately in section is set up vibration, and respectively from mirror 13, mirror 6 outputs, when need cooling off, carries out by 5 and 7 in medium, when gas medium does not need to cool off, then do not establish 5 and 7, this moment 5 and 7 and the unicom pipeline of discharge tube 3 and 12 blocked by vacuum leakproofness, cylinder 9 can make laser have more the multiplex (MUX) makes material and increases the service life.
EmbodimentBelow in conjunction with the drawings and specific embodiments the present invention is described in detail.
The rotation symmetry concave mirror 11,1 of inside and outside hollow round table resonant cavity of the present invention bottom all adopts circular optical glass or quartz wedge to do substrate, to He-Ne laser and CO
2Laser is suitable for, to the CO of very high output
2Laser, adopt compactness round copper billet fine, that hardness is higher to do substrate, adopt the hole cutter sweep that the inner dimensions of the part in the middle of two base materials according to inside and outside annular mirror required to cut down respectively, but this this part should be glued together so that grind processing with the ring block of self in the middle of two.Because two minute surface size differences, so adopt two covers to grind mould.The grinding tool that grinds two minute surfaces all adopts low-carbon steel material to be processed according to design by Digit Control Machine Tool, because two minute surfaces all do not possess the single center of curvature, so two grinding tools do not possess the single center of curvature yet, difficult in design and processing, but the curved surface of two minute surfaces has strict rotating shaft symmetry characteristic, and therefore there is not big difficulty in the processing of two grinding tools.After two grinding tools process, must keep strict rotating shaft symmetry requirement to the process of lapping of the mirror that should grind separately.The another side relative with two concave surfaces be from seeing all are tapers in face of the direction of central axis, and the chamber axle in the concavo-convex chamber separately in the bus of this two taper and the section is vertical.Each minute surface will be glued at of their centers alone behind the grinding and polishing again and take off, and can obtain two rotation symmetroid speculums, through strict clean and plate total reflection film after can be used on the device of the present invention.Inside and outside convex surface annulus of the present invention partly reflects outgoing mirror 13,6, two parts mirror size is different with specification, so also need the corresponding grinding mould of two covers, process of lapping and mirror 11,1 process of lapping are consistent, difference is that mirror 6,13 all is that convex surface is as partially reflecting mirror reflecting surface plating part reflectance coating, the another side relative with two convex surfaces be from seeing all are tapers in face of the direction of central symmetry axes, and the chamber axle in the concavo-convex chamber separately in the bus of this two taper and the section is vertical.The material of mirror 6,13 substrates can be selected glass for use for helium neon laser, for carbon dioxide laser, can select germanium wafer or zinc selenide etc. for use according to power requirement.
Inside and outside hollow round table shape discharge tube 12,3 in apparatus of the present invention then adopts the liquid of glass or quartzy fusing to inject in the graphite jig that is in uniform temperature to the He-Ne concentrator and makes after the cooling gradually.Two hollow round table shape discharge tubes constitute by inside and outside two-layer truncated cone-shaped glass or quartz ampoule, so the graphite jig of each hollow round table shape discharge tube all should be two covers.Graphite intensity is better, so can go up lathe comparatively accurately according to design processing, precision can reach 0.1mm.After mould is long, then assembling again after the available several graphite material segmental machining, the mould ectonexine all can adopt certain auxiliary clamp.Mould is not enough as if precision after use, then the mould that should repair or more renew.Hollow round table shape discharge tube of the present invention is to CO
2Laser then adopts aluminium, copper or thin stainless steel material to make, and the inside and outside two hollow round table shape metal tubes of each hollow round table shape discharge tube then directly are used as two sparking electrodes.
In device assembling process of the present invention, the support of inside and outside two round table surface of each discharge tube of the present invention and fixedly by adopting special support to realize.When being helium neon laser, all grind at the inside and outside layer glass of each discharge tube or bottom and the top of quartzy round table surface, the reflecting surface in bottom annulus mirror 11 and 1 vertical section is concave surface, the diameter of crossing the mid point of each concave surface is parallel to the bus of round platform separately, top annulus mirror 13 and 6 vertical section reflecting surface partly are convex surface, and the diameter of crossing the mid point of each convex surface is parallel to the bus of round platform separately. Mirror 11 and 1 the back side are all ground and are the conical surface, and the vertical section at mirror 11 and 1 the back side is straight line, and when this two mirror with separately during hollow round table discharge tube gummed, the vertical section at mirror 11 and 1 the back side is separately perpendicular to the chamber axle 16 and 15 in hollow round table discharge pipe chamber separately. Mirror 13 and 6 grinding back surface are the conical surface, the vertical section of this two conical surface is straight line, respectively perpendicular to the chamber axle 16 and 15 of separately hollow round table discharge tube, the intersection point of two straight lines in the vertical section of the conical surface at mirror 13 back sides overlaps with the intersection point of two straight lines in the vertical section of the conical surface at mirror 6 back sides, all is positioned on the central axis 17.Process two glass or quartzy large and small hollow round platform, the inner edge radius of the interior round table surface bottom of discharge tube is smaller in the roundlet radius ratio of little round platform, and the outer rim radius of the outer round table surface bottom of discharge tube is bigger in the great circle radius ratio of small circle ring; The inner edge radius of the interior round table surface bottom of the outer discharge tube of the roundlet radius ratio of big round platform is smaller, the outer rim radius of the outer round table surface bottom of the outer discharge tube of the great circle radius ratio of large circle is bigger, this two round platform is placed respectively on the adjustable metallic support of two three-dimensionals with one heart, under the monitoring of two helium neon lasers, fix the position of two round platforms, again with the annular gap between the outer rim of the inner edge of big round platform and little round platform according to 8 cementing positions of the equally spaced injection of circumferencial direction, big or small round platform is glued fixing, the big or small round platform that will be solidified togather again is inverted on the horizontal stand, and fix with support, on the mirror 1 that interior physical dimension and round type bottom size is separately matched and slightly can become flexible and mirror 11 place in big or small two round platforms respectively, interior electrode 10 is placed the internal layer truncated cone-shaped glass of interior discharge tube or the inside of quartz ampoule, again the bottom of this internal layer round type is placed on the interior ring of little ring and be positioned within the inner edge of the symmetrical total reflective mirror 11 of rotation, place the outer round table surface bottom of interior discharge tube on this little round platform again and be enclosed within the outer rim of mirror 11, because precision has been guaranteed in the processing of element, so suitably can reach requirement after the adjustment in the suitable monitoring of optical correction's instrument with by supplementary means to each element, and then with vacuum compound with mirror 11, ectonexine round platform pipe and round platform stick together, and 13 in the mirror at top is being installed and glued together with under the calibration beam monitoring consistent with axis in advance.Again anode 2 is loaded onto.Again the bottom of the internal layer round type of outer discharge tube is placed on the interior ring of big round platform and be positioned within the inner edge of inner rotary symmetry total reflective mirror 1, place the outer round table surface bottom of outer discharge tube on this big round platform again and be enclosed within the outer rim of mirror 1, equally, because precision has been guaranteed in the processing of element, so suitably can reach requirement after the adjustment in the suitable monitoring of optical correction's instrument with by supplementary means to each element, and then with vacuum compound with mirror 1, this ectonexine round platform pipe and big round platform stick together, and the mirror 6 at top is also being installed and glued together with under the calibration beam monitoring consistent with axis in advance.Again external electrode 4 is loaded onto.This laser can be at this support vertical working, export from the top, its advantage is easy to assembly, optical element is stressed very little, also can be in assembling back traverse or the inverted work that finishes, but tackle support at traverse or before standing upside down and do certain processing, make it that supplemental support of certain intensity be arranged inside and outside discharge tube ectonexine round type separately, and also strengthen supporting in the gap that inside and outside discharge tube forms, make its traverse or the gravity of the ectonexine round platform pipe of back two discharge tubes that stand upside down and electrode almost by the support support, this moment, laser output mirror was from laterally or from following output.When being carbon dioxide laser, because the ectonexine round type of each discharge tube is metal tube and simultaneously as electrode, so the intensity of pipe is very high, its support problem solves easily, assemble the basic identical of preceding preparation and assembling process and helium neon laser, it should be noted that the Insulation Problems between three electrodes, when with the rotation symmetroid mirror of glass or quartz substrate, if the plating deielectric-coating does not then have problems, if metal-coated membrane, then should between the connecting portion of round type bottom and completely reflecting mirror separately, insulating barrier be arranged, but the voltage of radio-frequency power supply all is lower usually.
After device assembles, discharge tube and coupling part are evacuated.Helium neon laser is worked as vacuum degree reach 10
-6During * 133.3Pa, in the ratio of Ne:He=1:8, charging into gaseous mixture pressure is 0.8 * 133.3Pa, two parts speculum is 98% to the reflectivity of 0.6328 micron wave length light wave, satisfactory to both parties reflectance of reflector is more than 99.8%, it to be imposed radio frequency discharge, can obtain output.To carbon dioxide laser, when vacuum degree reaches 10
-3During * 133.3Pa, according to CO
2: N
2: He=1:1.5:7.5, stagnation pressure are 10 * 133.3Pa, and two parts speculum is 80% to 10.6 micron wave length light wave reflectivity, and satisfactory to both parties reflectance of reflector is more than 99%, it is imposed radio frequency discharge can obtain output.
EmbodimentDischarge tube 3 and 12 all adopts
L 1,
L 2Be the hollow round table shape glass tube of 100 millimeters long, spacing between two resonant cavitys inside and outside layer round type separately
aBe 4 millimeters, the drift angle of inside and outside round platform
θ 1,
θ 2Be respectively 0.34 radian, 0.52 radian, outer completely reflecting mirror 1 is the symmetrical concave surface annular mirror of rotation, inside and outside edge radius
R 211,
R 212Be respectively 41.17 millimeters, 45.04 millimeters, the radius of curvature of section concave surface is 772.99 millimeters, outer outgoing mirror 6 is the symmetrical convex surface annular mirror of rotation, and inside and outside edge radius is respectively 15.77 millimeters, 19.71 millimeters, and the radius of curvature of section convex surface is 2014.90 millimeters; Inner total reflection mirror 11 is the symmetrical concave surface annular mirror of rotation, inside and outside edge radius
R 111,
R 112Be respectively 24.80 millimeters, 28.75 millimeters, the radius of curvature of section concave surface is 713.30 millimeters, interior outgoing mirror 13 is the symmetrical convex surface annular mirror of rotation, and inside and outside edge radius is respectively 7.88 millimeters, 11.83 millimeters, and the radius of curvature of section convex surface is 1566.10 millimeters; The intersection point of the extended line of two straight lines at the intersection point of the extended line of two straight lines at the back side, mirror 6 vertical section and the back side, mirror 13 vertical section overlaps; The output beam wavelength of mirror 6 and mirror 13 is 10.6 microns, and the light cage that output beam forms is around O
1O
2Axle rotation symmetry is in the profile of Fig. 5 light cage, along O
1O
2Between the dark major axis of light cage be 1.11 millimeters, in Fig. 5 profile along C
1C
2Between the dark minor axis length of light cage be 0.25 millimeter.
Form the device of light cage, in comprising, inner rotary symmetry concave surface annulus completely reflecting mirror, in, outer hollow round table shape discharge tube, in, inner rotary symmetry convex surface annulus partially reflecting mirror, interior electrode, anode, external electrode, cylinder, blower fan, radio-frequency power supply and matching network, water collar, with reference to Fig. 1, inner rotary symmetry concave surface annular completely reflecting mirror 1 is connected with the bottom of outer hollow round table shape discharge tube 3, outer convex surface annulus partially reflecting mirror 6 is connected with the top of discharge tube 3, the symmetrical concave surface annular completely reflecting mirror 11 of interior rotation is connected with the bottom of interior hollow round table shape discharge tube 12, interior convex surface annulus partially reflecting mirror 13 is connected with the top of interior discharge tube 12, anode 2 is close to discharge tube 3 inboards or directly is anode (when for metal material) by inwall, external electrode 4 is close to outer discharge tube 3 outsides or directly is external electrode (when for metal material) by outer wall, interior electrode 10 be close to interior discharge tube 12 inboards or by inwall directly as interior electrode (when for metal material), cylinder 9 is connected with 12 with discharge tube 3 and around discharge tube 3, water collar 5 is around discharge tube, blower fan 7 is connected with 12 with discharge tube 3 by cylinder 9, outer radio-frequency power supply and matching network 8 are connected with external electrode 4 with anode 2, interior radio-frequency power supply and matching network 0 are connected with interior electrode 10 with anode 2, it is characterized in that outer discharge tube 3 and interior discharge tube 12 are two nested in the same way hollow round table shape discharge tubes, the inside and outside wall of two discharge tubes all is round types, truncated cone-shaped interlayer between two two round types constitutes two region of discharges, the bottom of outer discharge tube 3 and top are respectively by total reflective mirror 1 and partially reflecting mirror 6 vacuum sealing labels, the bottom of interior discharge tube 12 and top are respectively by total reflective mirror 11 and partially reflecting mirror 13 vacuum sealing labels, in making, outer two hollow round table clevis sheaf spaces can pumping high vacuum, under high vacuum condition with He-Ne gaseous mixture or carbon dioxide, nitrogen, helium gas mixture charges into discharge tube 12 and 3.Be further characterized in that resonant cavity is two nested in the same way hollow round table shape resonant cavitys, it is by in being installed on, the symmetrical concave surface annular completely reflecting mirror 11 of two rotations of outer two hollow round table shape discharge tubes bottom, 1 be installed on two respectively in, the rotation symmetry convex surface annulus partially reflecting mirror 13 and 6 at outer discharge tube top is formed, completely reflecting mirror 11,1 symmetry axis, partially reflecting mirror 13,6 symmetry axis and discharge tube 12,3 central axis counterpoise is combined into 17, installing along in arbitrary section of discharge tube axis 17, completely reflecting mirror 1 and partially reflecting mirror 6 all have two centers of curvature to be symmetrically distributed in discharge tube axis both sides respectively, resonant cavity is to bunch formation two concavo-convex thorax chambeies of light in the section, two my husband chambeies for device, be designed to stable cavity, the waist spot of this two my husbands chamber output beam is positioned at chamber exterior point O
2, the optical axis of the output beam in this two my husbands chamber also meets at an O
2, and some O
2Be positioned on 17; Installing along in arbitrary section of discharge tube axis 17, completely reflecting mirror 11 and partially reflecting mirror 13 also all have two centers of curvature to be symmetrically distributed in discharge tube axis both sides respectively, resonant cavity is to bunch formation two concavo-convex thorax chambeies of light in the section, two interior sub-chambeies for device, be designed to stable cavity, the waist spot of this two interior sub-chambeies output beam is positioned at chamber exterior point O
1, the optical axis of the output beam in this two my husbands chamber also meets at an O
1, and some O
1Be positioned on 17 point O
1With an O
2Do not overlap.The intersection point of the output beam optical axis in the output beam optical axis in the following sub-chamber of inner chamber and the last sub-chamber of exocoel is C
1, the intersection point of the output beam optical axis in the output beam optical axis in the last sub-chamber of inner chamber and the following sub-chamber of exocoel is C
2, some C
1With a C
2Do not overlap.The output beam that is further characterized in that this device forms around O
1O
2The rotational symmetric smooth cage of axle, the vertical section of light cage is positioned at O
1O
2C
1C
2Surround the intra-zone of formation, the dark major axis of light cage is along O
1O
2Direction and at an O
1With an O
2Between, compare O
1O
2Between distance little, the dark minor axis axle of light cage is along C
1C
2Direction and at a C
1With a C
2Between, compare C
1C
2Between distance little.Point O
1, O
2, C
1, C
2Be called intersection point one, two, three, four.
The present invention compares with existing patent ZL200910216214.1, has following characteristics:
1, the gas laser that device of the present invention has adopted two inside and outside nested hollow round table resonant cavitys to form;
2, it is zero zone that the spatial distribution of the laser beam that two resonant cavitys are exported in apparatus of the present invention occurs by the light intensity of the three-dimensional parcel of laser omnidirectional three-dimensional, and namely the distribution of light cage appears in output beam, and the relative optical axis rotation of this light cage is symmetrically distributed.
Claims (3)
1. apparatus and method that realize the light cage, it is characterized in that comprising have in, the gas laser that outer two nested in the same way hollow round table gas laser resonant cavitys constitute, described have in, the interior hollow round table resonant cavity of the gas laser that outer two nested in the same way hollow round table gas laser resonant cavitys constitute is made of the symmetrical concave surface annular of the interior rotation total reflective mirror (11) of interior hollow round table shape discharge tube (12) and the subsides of (12) bottom and the symmetrical convex surface annular of the interior rotation partially reflecting mirror (13) that paste at (12) top, this mirror (13) is the outgoing mirror of interior hollow round table resonant cavity, the symmetrical convex surface annular of the interior rotation partially reflecting mirror (6) that outer hollow round table resonant cavity is pasted by inner rotary symmetry concave surface annular total reflective mirror (1) and (3) top that paste interior hollow round table shape discharge tube (3) and (3) bottom constitutes, this mirror (6) is the outgoing mirror of interior hollow round table resonant cavity, in, the central axes of outer two hollow round table resonant cavitys, be (17), this two resonant cavity is placed in the same way, interior hollow round table resonant cavity along arbitrary vertical section of central axis (17) be two with respect to the axisymmetric concavo-convex resonant cavity of central axis (17), the sub-chamber of hollow round table resonant cavity in being called, the optical axis intersection of the output beam in two sub-chambeies of hollow round table resonant cavity is in intersection point one in being somebody's turn to do, this intersection point one is positioned on (17), outer hollow round table resonant cavity along arbitrary vertical section of central axis (17) be two with respect to the axisymmetric concavo-convex resonant cavity of central axis (17), the sub-chamber that is called outer hollow round table resonant cavity, the optical axis intersection of the output beam in the two sub-chambeies of this outer hollow round table resonant cavity is in intersection point two, this intersection point two is positioned on (17), in, outer two hollow round table resonant cavitys are along in the same vertical section of central axis (17), the optical axis intersection of the output beam in the last sub-chamber of the optical axis of the output beam in the following sub-chamber of interior hollow round table resonant cavity and outer hollow round table resonant cavity is in intersection point three, the optical axis intersection of the output beam in the following sub-chamber of the optical axis of the output beam in the last sub-chamber of interior hollow round table resonant cavity and outer hollow round table resonant cavity is in intersection point four, intersection point one, two, three, four all do not overlap.
2. a kind of apparatus and method that realize the light cage according to claim 1, it is zero solid space that one light field appears in the spatial distribution that it is characterized in that the output beam of gas laser described in the claim 1, this solid space is by the three-dimensional parcel of the non-vanishing laser light field omnidirectional three-dimensional of intensity distributions, form the light cage, this light cage is with respect to central axis (17) rotation symmetry, the vertical section of this light cage is positioned at the intersection point one described in the claim 1, two, three, four surround the intra-zone of formation, the dark major axis of light cage is along optical axis direction and between intersection point one and intersection point two, this dark major axis is littler than the distance between intersection point one and two, the dark minor axis of light cage is along the line direction of intersection point three and intersection point four and between intersection point three and intersection point four, and this dark minor axis is littler than the distance between intersection point three and four.
3. a kind of apparatus and method that realize the light cage according to claim 1, in comprising, inner rotary symmetry concave surface annulus completely reflecting mirror (11), (1), in, outer hollow round table shape discharge tube (12), (3), in, inner rotary symmetry convex surface annulus partially reflecting mirror (13), (6), interior electrode (10), anode (2), external electrode (4), cylinder (9), blower fan (7), in, outer radio-frequency power supply and matching network (0), (8), water collar (5), inner rotary symmetry concave surface annular completely reflecting mirror (1) is connected with the bottom of outer hollow round table shape discharge tube (3), outer convex surface annulus partially reflecting mirror (6) is connected with the top of discharge tube (3), the interior symmetrical concave surface annular completely reflecting mirror of rotation (11) is connected with the bottom of interior hollow round table shape discharge tube (12), interior convex surface annulus partially reflecting mirror (13) is connected with the top of interior discharge tube (12), anode (2) is close to discharge tube (3) inboard or directly is anode (when for metal material) by inwall, external electrode (4) is close to outer discharge tube (3) outside or directly is external electrode (when for metal material) by outer wall, interior electrode (10) and interior discharge tube (12) inboard be close to or by inwall directly as interior electrode (when for metal material), cylinder (9) is connected with (12) with discharge tube (3) and around discharge tube (3), water collar (5) is around discharge tube, blower fan (7) is connected with (12) with discharge tube (3) by cylinder (9), outer radio-frequency power supply and matching network (8) are connected with external electrode (4) with anode (2), interior radio-frequency power supply and matching network (0) are connected with interior electrode (10) with anode (2), it is characterized in that outer discharge tube (3) and interior discharge tube (12) are two nested in the same way hollow round table shape discharge tubes, the inside and outside wall of two discharge tubes all is round types, truncated cone-shaped interlayer between two two round types constitutes two region of discharges, the bottom of outer discharge tube (3) and top are respectively by total reflective mirror (1) and partially reflecting mirror (6) vacuum sealing label, the bottom of interior discharge tube (12) and top are respectively by total reflective mirror (11) and partially reflecting mirror (13) vacuum sealing label, in making, outer two hollow round table clevis sheaf spaces can pumping high vacuum, under high vacuum condition with He-Ne gaseous mixture or carbon dioxide, nitrogen, helium gas mixture charges into discharge tube (12) and (3).
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5939716A (en) * | 1997-04-02 | 1999-08-17 | Sandia Corporation | Three-dimensional light trap for reflective particles |
| US20020109923A1 (en) * | 2000-04-07 | 2002-08-15 | Nikon Corporation | Minute particle optical manipulation method and apparatus |
| CN1740831A (en) * | 2005-08-26 | 2006-03-01 | 清华大学 | Optical waveguide optical spanner system |
| CN101236275A (en) * | 2008-02-19 | 2008-08-06 | 哈尔滨工程大学 | Optical forceps based on ring -shaped multi- core optical fibre |
| CN102064458A (en) * | 2009-11-13 | 2011-05-18 | 四川大学 | Hollow frustum resonant cavity gas laser |
| CN102364376A (en) * | 2011-10-26 | 2012-02-29 | 华侨大学 | Novel axicon capable of generating single bottle beam |
-
2013
- 2013-04-25 CN CN201310144983.1A patent/CN103236626B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5939716A (en) * | 1997-04-02 | 1999-08-17 | Sandia Corporation | Three-dimensional light trap for reflective particles |
| US20020109923A1 (en) * | 2000-04-07 | 2002-08-15 | Nikon Corporation | Minute particle optical manipulation method and apparatus |
| CN1740831A (en) * | 2005-08-26 | 2006-03-01 | 清华大学 | Optical waveguide optical spanner system |
| CN101236275A (en) * | 2008-02-19 | 2008-08-06 | 哈尔滨工程大学 | Optical forceps based on ring -shaped multi- core optical fibre |
| CN102064458A (en) * | 2009-11-13 | 2011-05-18 | 四川大学 | Hollow frustum resonant cavity gas laser |
| CN102364376A (en) * | 2011-10-26 | 2012-02-29 | 华侨大学 | Novel axicon capable of generating single bottle beam |
Non-Patent Citations (1)
| Title |
|---|
| 翁晓羽等: "拉盖尔高斯径向偏振光高数值孔径聚焦特性", 《光子学报》 * |
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