CN114063308A - Terahertz polarization adjusting system based on metal wire grid terahertz wire polarizer - Google Patents
Terahertz polarization adjusting system based on metal wire grid terahertz wire polarizer Download PDFInfo
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- CN114063308A CN114063308A CN202111360978.5A CN202111360978A CN114063308A CN 114063308 A CN114063308 A CN 114063308A CN 202111360978 A CN202111360978 A CN 202111360978A CN 114063308 A CN114063308 A CN 114063308A
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- 230000010287 polarization Effects 0.000 title claims abstract description 63
- 239000002184 metal Substances 0.000 title claims abstract description 35
- 230000003287 optical effect Effects 0.000 claims abstract description 59
- 230000035939 shock Effects 0.000 claims abstract description 12
- 238000010521 absorption reaction Methods 0.000 claims abstract description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims 2
- 241001330002 Bambuseae Species 0.000 claims 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 2
- 239000011425 bamboo Substances 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 230000001808 coupling effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001328 terahertz time-domain spectroscopy Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/281—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for attenuating light intensity, e.g. comprising rotatable polarising elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/286—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising for controlling or changing the state of polarisation, e.g. transforming one polarisation state into another
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3058—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state comprising electrically conductive elements, e.g. wire grids, conductive particles
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
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Abstract
The invention discloses a terahertz polarization adjusting system based on a metal wire grid terahertz wire polarizer, which comprises an optical shock absorption seat, a front adjusting module, a rear adjusting module and an optical path adjusting module, wherein the terahertz polarization adjusting system comprises the front adjusting module and the rear adjusting module which are symmetrically distributed on the upper side of the optical shock absorption seat, the front adjusting module and the rear adjusting module have the same structure, and the optical path adjusting module is used for adjusting the linear distance between the front adjusting module and the rear adjusting module. According to the invention, the intensity of terahertz waves can be adjusted through the front polarizer, the rear polarizer, the optical path adjusting module, the attitude adjusting module and the polarization angle adjusting module, the polarization direction of incident light rays can be determined, the linear polarizer can be subjected to pitching and deflection adjustment, the accurate adjustment of the rotation angle of the linear polarizer is realized, and the polarization angle can be conveniently detected in the test process.
Description
Technical Field
The invention relates to the field of physical experiment equipment, in particular to a terahertz polarization adjusting system based on a metal wire grid terahertz wire polarizer.
Background
The electromagnetic vibrator is excited by a magnetoelectric coupling effect element in a multiferroic material, is a representation of a dynamic magnetoelectric coupling effect, the characteristic problem of the electromagnetic vibrator is researched and is the basis for analyzing the microscopic mechanism of the dynamic coupling effect, in the test process, the electromagnetic vibrator is mostly detected by combining a terahertz time-domain spectroscopy system with a sensitive optical means, and the terahertz polarization adjustment in the terahertz time-domain spectroscopy system is a necessary technology for researching the selectivity and the magnetic resonance optical rotation of the electromagnetic vibrator. The terahertz polarization adjustment principle is as follows: when terahertz waves pass through the metal wire grid polarizer, polarized light components arranged in parallel to the metal wire grid are reflected by the metal wire grid of the polaroid, or absorbed by doing work on electrons in the metal wire grid, and the polarized light components arranged perpendicular to the metal wire grid can pass through the metal wire grid, so that the intensity of the terahertz waves and the direction of the continuously transmitted terahertz waves can be adjusted through the metal wire grid polarizer.
At present, a single metal wire grid polarizer is mostly used for adjustment in a test process in a manual mode, but the mode is not convenient to operate in practical operation, and meanwhile, because the distance between metal wire grids of the metal wire grid polarizer is extremely small (smaller than 0.03 mm), when the mode is adjusted manually, a polarizing film of the metal wire grid polarizer is difficult to rotate by an angle equal to a theoretical value calculated value, the intensity of terahertz waves and the direction of required incident light cannot be accurately adjusted, the whole test process is further influenced, and electromagnetic vibrators are difficult to detect.
Disclosure of Invention
The terahertz wave intensity can be adjusted and the polarization direction of incident light can be determined by the aid of the front polarizer, the rear polarizer, the optical path adjusting module, the attitude adjusting module and the polarization angle adjusting module, so that the linear polarizer can be subjected to pitching and deflection adjustment, the rotation angle of the linear polarizer can be accurately adjusted, the polarization angle can be conveniently detected in a test process, and the problems in the background technology can be effectively solved.
In order to achieve the purpose, the invention adopts the technical scheme that:
a terahertz polarization adjusting system based on a metal wire grid terahertz wire polarizer comprises an optical shock absorption seat, a front adjusting module, a rear adjusting module and an optical path adjusting module, the terahertz polarization adjusting system comprises a front adjusting module and a rear adjusting module which are symmetrically distributed on the upper side of an optical shock absorption seat, the front adjusting module and the rear adjusting module have the same structure, the front adjusting module is arranged at the left side of the upper end of the optical shock-absorbing seat, the rear adjusting module is arranged at the upper end of the optical path adjusting module, the optical path adjusting module is used for adjusting the linear distance between the front adjusting module and the rear adjusting module, the preposed adjusting module comprises a preposed linear polarizer, an attitude adjusting module and a polarization angle adjusting module, the post-adjusting module comprises a post-linear polarizer, an attitude adjusting module and a polarization angle adjusting module.
Further, the optical path adjusting module is installed inside the upper end of the optical shock absorption seat, and the optical path adjusting module includes lead screw, driving motor, slide, guiding axle and bearing frame, driving motor fixed mounting is at the right-hand member of optical shock absorption seat, and driving motor's main shaft end is connected with the lead screw, the lead screw tip rotates with the bearing frame to be connected, the slide is installed in the lead screw outside, and the inside symmetry of slide installs the guiding axle, the tip and the optical shock absorption seat fixed connection of guiding axle.
Furthermore, the front linear polarizer and the rear linear polarizer are both installed inside the attitude adjusting module, the attitude adjusting module is installed inside the polarization angle adjusting module, and the end face of the inner side of the polarization angle adjusting module is provided with a shading cylinder which is of a telescopic structure.
Further, the posture adjusting module is including adjusting the shell, adjust the inside dish spring that is equipped with of shell, dish spring outside terminal surface is connected with one side terminal surface of leading linear polarizer and rearmounted linear polarizer, and the outside of leading linear polarizer and rearmounted linear polarizer opposite side terminal surface is equipped with adjustment handle, there is the position control circle adjustment handle outside through threaded connection, the position control circle outside is rotated with the regulation shell and is connected, adjust the shell and be the hollow cylinder structure, and the hole terminal surface symmetry of just adjusting the shell is equipped with four spouts.
Furthermore, the outer side end faces of the front linear polarizer and the rear linear polarizer are respectively provided with a guide post, and the guide posts are correspondingly arranged in a sliding groove of the adjusting shell.
Furthermore, the number of the adjusting handles is six, the adjusting handles are distributed on the outer end face of the position adjusting ring in a surrounding mode, and angle marked lines are arranged on the outer end face of the position adjusting ring.
Further, the polarization angle adjusting module comprises a shell, the inner side end face of the shell is connected with the shading cylinder, a stepping motor is installed on one side end face of the shell connected with the shading cylinder, a gear is connected to the tail end of a main shaft of the stepping motor, a gear ring is meshed with the outer side of the gear, and the outer end face of the gear ring is fixedly connected with the adjusting shell.
The invention has the following beneficial effects:
compared with the prior art, by the aid of the front polarizer and the rear polarizer, when terahertz waves pass through the front polarizer, part of polarized light components arranged parallel to the metal wire grids are reflected by the metal wire grids of the polaroid or absorbed by applying work to electrons in the metal wire grids, so that the intensity of the terahertz waves is changed, the function of adjusting the intensity of the terahertz waves is realized, when the terahertz waves pass through the rear polarizer, the polarized components are reflected or absorbed, and the residual electric components along the fixed direction can be continuously transmitted, so that the polarization direction of incident light irradiating on a sample to be measured can be adjusted;
compared with the prior art, the optical path adjusting module is arranged, the driving motor is used for driving the lead screw to rotate, the sliding seat can make linear motion along the direction of the guide shaft, the sliding seat drives the rear linear polarizer to move, and the distance between the rear linear polarizer and the front linear polarizer is changed, so that the size of a terahertz wave propagation path in the adjusting system can be changed, and meanwhile, the telescopic shading cylinder is arranged on a terahertz wave propagation path, so that the influence of the external environment on an optical path can be reduced, and the adjusting precision is improved;
compared with the prior art, the adjusting handle outside the adjusting shell is rotated through the posture adjusting module, the end part of the adjusting handle is connected with the linear polarizer body, when the adjusting handle is screwed, the linear polarizer is inwardly contracted and extrudes the disc spring, so that the linear polarizer is inclined, the linear polarizer can be subjected to pitching and deflection adjustment, a plurality of groups of adjusting handles are arranged, the linear polarizer can be subjected to multidirectional adjustment, and the inclined state of the linear polarizer can be changed according to test requirements;
compared with the prior art, the main shaft of the stepping motor can accurately rotate a designated angle under the control of a microcomputer through the polarization angle adjusting module, meanwhile, power is transmitted by the gear ring transmission system and the linear polarizer is driven to rotate, when a corresponding number of pulse signals are input into the microcomputer, the main shaft of the motor outputs a corresponding number of rotation angles, the gear ring further reduces the rotation angle adjusting amplitude in an equal proportion, and therefore the linear polarizer can rotate by a very small angle, the accurate adjustment of the rotation angles of the linear polarizer is achieved, and the polarization angle can be conveniently detected in the test process.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the technical description of the present invention will be briefly introduced below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a schematic diagram of an overall structure of a terahertz polarization adjustment system based on a metal wire grid terahertz wire polarizer according to the present invention;
FIG. 2 is an exploded view of the overall structure of a terahertz polarization adjustment system based on a metal wire grid terahertz wire polarizer according to the present invention;
fig. 3 is a schematic view of an installation structure of a front linear polarizer of a terahertz polarization adjusting system based on a metal wire grid terahertz linear polarizer according to the present invention.
In the figure: 1. an optical shock mount; 2. a front-mounted adjusting module; 3. a rear adjusting module; 4. an optical path adjusting module; 41. a screw rod; 42. a drive motor; 43. a slide base; 44. a guide shaft; 45. a bearing seat; 5. a front-mounted linear polarizer; 6. an attitude adjustment module; 61. an adjustment housing; 62. a disc spring; 63. an adjusting handle; 64. a position adjusting ring; 65. a chute; 7. a polarization angle adjusting module; 71. an outer housing; 72. a stepping motor; 73. a gear; 74. a ring gear; 8. a rear linear polarizer; 9. a shading cylinder; 10. and a guide post.
Detailed Description
The present invention will be further described with reference to the following detailed description, wherein the drawings are for illustrative purposes only and are not intended to be limiting, wherein certain elements may be omitted, enlarged or reduced in size, and are not intended to represent the actual dimensions of the product, so as to better illustrate the detailed description of the invention.
Example 1
As shown in fig. 1-3, a terahertz polarization adjustment system based on a metal wire grid terahertz polarizer includes an optical damper 1, a front adjustment module 2, a rear adjustment module 3 and an optical path adjustment module 4, the terahertz polarization adjustment system includes a front adjustment module 2 and a rear adjustment module 3 symmetrically distributed on the upper side of the optical damper 1, the front adjustment module 2 and the rear adjustment module 3 have the same structure, the front adjustment module 2 is installed on the left side of the upper end of the optical damper 1, the rear adjustment module 3 is installed on the upper end of the optical path adjustment module 4, the optical path adjustment module 4 is used for adjusting the linear distance between the front adjustment module 2 and the rear adjustment module 3, the front adjustment module 2 includes a front linear polarizer 5, an attitude adjustment module 6 and a polarization angle adjustment module 7, the rear adjustment module 3 includes a rear linear polarizer 8, a rear linear polarizer 8, An attitude adjusting module 6 and a polarization angle adjusting module 7.
The front linear polarizer 5 and the rear linear polarizer 8 are both arranged inside the attitude adjusting module 6, the attitude adjusting module 6 is arranged inside the polarization angle adjusting module 7, the inner side end face of the polarization angle adjusting module 7 is provided with a shading cylinder 9, and the shading cylinder 9 is of a telescopic structure.
By adopting the technical scheme: when terahertz waves pass through the front polarizer 5, part of polarized light components arranged parallel to the metal wire grids are reflected by the metal wire grids of the polaroid, or absorbed due to acting on electrons in the metal wire grids, so that the intensity of the terahertz waves is changed, and the function of adjusting the intensity of the terahertz waves is realized.
Example 2
As shown in fig. 1-3, a terahertz polarization adjustment system based on a metal wire grid terahertz polarizer includes an optical damper 1, a front adjustment module 2, a rear adjustment module 3 and an optical path adjustment module 4, the terahertz polarization adjustment system includes a front adjustment module 2 and a rear adjustment module 3 symmetrically distributed on the upper side of the optical damper 1, the front adjustment module 2 and the rear adjustment module 3 have the same structure, the front adjustment module 2 is installed on the left side of the upper end of the optical damper 1, the rear adjustment module 3 is installed on the upper end of the optical path adjustment module 4, the optical path adjustment module 4 is used for adjusting the linear distance between the front adjustment module 2 and the rear adjustment module 3, the front adjustment module 2 includes a front linear polarizer 5, an attitude adjustment module 6 and a polarization angle adjustment module 7, the rear adjustment module 3 includes a rear linear polarizer 8, a rear linear polarizer 8, An attitude adjusting module 6 and a polarization angle adjusting module 7.
The optical path adjusting module 4 is installed inside the upper end of the optical shock mount 1, and the optical path adjusting module 4 includes a screw rod 41, a driving motor 42, a sliding seat 43, a guide shaft 44 and a bearing seat 45, the driving motor 42 is fixedly installed at the right end of the optical shock mount 1, and the end of a main shaft of the driving motor 42 is connected with the screw rod 41, the end of the screw rod 41 is rotatably connected with the bearing seat 45, the sliding seat 43 is installed outside the screw rod 41, the guide shaft 44 is symmetrically installed inside the sliding seat 43, and the end of the guide shaft 44 is fixedly connected with the optical shock mount 1.
The front linear polarizer 5 and the rear linear polarizer 8 are both arranged inside the attitude adjusting module 6, the attitude adjusting module 6 is arranged inside the polarization angle adjusting module 7, the inner side end face of the polarization angle adjusting module 7 is provided with a shading cylinder 9, and the shading cylinder 9 is of a telescopic structure.
By adopting the technical scheme: the lead screw 41 is driven to rotate by the driving motor 42, the sliding seat 43 can make linear motion along the direction of the guide shaft 44, the sliding seat 43 drives the rear linear polarizer 8 to move, and the distance between the rear linear polarizer 8 and the front linear polarizer 5 is changed, so that the size of a terahertz wave propagation path in the adjusting system can be changed, and meanwhile, the telescopic light shielding cylinder 9 is arranged on the terahertz wave propagation path, so that the influence of the external environment on a light path can be reduced, and the adjusting precision is improved.
Example 3
As shown in fig. 1-3, a terahertz polarization adjustment system based on a metal wire grid terahertz polarizer includes an optical damper 1, a front adjustment module 2, a rear adjustment module 3 and an optical path adjustment module 4, the terahertz polarization adjustment system includes a front adjustment module 2 and a rear adjustment module 3 symmetrically distributed on the upper side of the optical damper 1, the front adjustment module 2 and the rear adjustment module 3 have the same structure, the front adjustment module 2 is installed on the left side of the upper end of the optical damper 1, the rear adjustment module 3 is installed on the upper end of the optical path adjustment module 4, the optical path adjustment module 4 is used for adjusting the linear distance between the front adjustment module 2 and the rear adjustment module 3, the front adjustment module 2 includes a front linear polarizer 5, an attitude adjustment module 6 and a polarization angle adjustment module 7, the rear adjustment module 3 includes a rear linear polarizer 8, a rear linear polarizer 8, An attitude adjusting module 6 and a polarization angle adjusting module 7.
The posture adjusting module 6 comprises an adjusting shell 61, a disc spring 62 is arranged inside the adjusting shell 61, the outer end face of the disc spring 62 is connected with one side end face of the front linear polarizer 5 and one side end face of the rear linear polarizer 8, an adjusting handle 63 is arranged on the outer side of the other side end face of the front linear polarizer 5 and the rear linear polarizer 8, a position adjusting ring 64 is connected to the outer side of the adjusting handle 63 through threads, the outer side of the position adjusting ring 64 is rotatably connected with the adjusting shell 61, the adjusting shell 61 is of a hollow cylindrical structure, and four sliding grooves 65 are symmetrically arranged on the inner hole end face of the adjusting shell 61.
The outer side end faces of the front linear polarizer 5 and the rear linear polarizer 8 are respectively provided with a guide post 10, and the guide posts 10 are correspondingly installed in the sliding grooves 65 of the adjusting shell 61.
The number of the adjusting handles 63 is six, the adjusting handles 63 are distributed on the outer end face of the position adjusting ring 64 in a surrounding mode, and angle marked lines are arranged on the outer end face of the position adjusting ring 64.
By adopting the technical scheme: when the adjusting handle 63 on the outer side of the adjusting shell 61 is rotated, the end part of the adjusting handle 63 is connected with the body of the linear polarizer, when the adjusting handle 63 is screwed, the linear polarizer contracts inwards and presses the disc spring 62, the guide column 10 fixed on the outer side of the polarizer slides in the sliding groove 65 on the inner end face of the adjusting shell 61, so that the linear polarizer is inclined, the linear polarizer can be subjected to pitching and yawing adjustment, a plurality of groups of adjusting handles are arranged, the linear polarizer can be adjusted in multiple directions, the inclined state of the linear polarizer can be changed according to test requirements conveniently, and when the adjusting handle 63 is reset, the disc spring 62 is restored to the original shape, so that the polarizer is pushed to reset.
Example 4
As shown in fig. 1-3, a terahertz polarization adjustment system based on a metal wire grid terahertz polarizer includes an optical damper 1, a front adjustment module 2, a rear adjustment module 3 and an optical path adjustment module 4, the terahertz polarization adjustment system includes a front adjustment module 2 and a rear adjustment module 3 symmetrically distributed on the upper side of the optical damper 1, the front adjustment module 2 and the rear adjustment module 3 have the same structure, the front adjustment module 2 is installed on the left side of the upper end of the optical damper 1, the rear adjustment module 3 is installed on the upper end of the optical path adjustment module 4, the optical path adjustment module 4 is used for adjusting the linear distance between the front adjustment module 2 and the rear adjustment module 3, the front adjustment module 2 includes a front linear polarizer 5, an attitude adjustment module 6 and a polarization angle adjustment module 7, the rear adjustment module 3 includes a rear linear polarizer 8, a rear linear polarizer 8, An attitude adjusting module 6 and a polarization angle adjusting module 7.
The polarization angle adjusting module 7 comprises an outer shell 71, the inner end surface of the outer shell 71 is connected with the shading cylinder 9, a stepping motor 72 is installed on the end surface of one side, connected with the shading cylinder 9, of the outer shell 71, a gear 73 is connected to the tail end of a main shaft of the stepping motor 72, a gear ring 74 is meshed on the outer side of the gear 73, and the outer end surface of the gear ring 74 is fixedly connected with the adjusting shell 61.
By adopting the technical scheme: through the polarization angle adjusting module 7, the main shaft of the stepping motor 72 can accurately rotate a designated angle under the control of a microcomputer, meanwhile, a transmission system of the gear 73 and the gear ring 74 transmits power and drives the linear polarizer to rotate, when a corresponding number of pulse signals are input into the microcomputer, the main shaft of the stepping motor 72 outputs a corresponding number of rotation angles, the rotation angle adjusting amplitude is further reduced in an equal proportion by the gear 73 and the gear ring 74, and therefore the linear polarizer can rotate by a very small angle, the rotation angle of the linear polarizer can be accurately adjusted, and the polarization angle can be conveniently detected in the test process.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a terahertz polarization governing system now based on wire grating terahertz wire polarizer, includes optics cushion socket (1), leading adjusting module (2), rearmounted adjusting module (3) and optical path adjusting module (4), its characterized in that: the terahertz polarization adjusting system comprises a front adjusting module (2) and a rear adjusting module (3) which are symmetrically distributed on the upper side of an optical shock absorption seat (1), the front adjusting module (2) and the rear adjusting module (3) have the same structure, the front adjusting module (2) is arranged on the left side of the upper end of the optical shock-absorbing seat (1), the rear adjusting module (3) is arranged on the upper end of the optical path adjusting module (4), the optical path adjusting module (4) is used for adjusting the linear distance between the front adjusting module (2) and the rear adjusting module (3), the preposed adjusting module (2) comprises a preposed linear polarizer (5), an attitude adjusting module (6) and a polarization angle adjusting module (7), the rear adjusting module (3) comprises a rear linear polarizer (8), an attitude adjusting module (6) and a polarization angle adjusting module (7).
2. The terahertz polarization adjustment system based on the metal wire grid terahertz wire polarizer is in accordance with claim 1, wherein: optical distance adjusting module (4) are installed inside the upper end of optics cushion socket (1), and optical distance adjusting module (4) include lead screw (41), driving motor (42), slide (43), guiding axle (44) and bearing frame (45), driving motor (42) fixed mounting is at the right-hand member of optics cushion socket (1), and the main shaft end of driving motor (42) is connected with lead screw (41), lead screw (41) tip rotates with bearing frame (45) to be connected, slide (43) are installed in lead screw (41) outside, and slide (43) inside symmetry installs guiding axle (44), the tip and the optics cushion socket (1) fixed connection of guiding axle (44).
3. The terahertz polarization adjustment system based on the metal wire grid terahertz wire polarizer is in accordance with claim 1, wherein: leading linear polarizer (5) and rearmounted linear polarizer (8) are all installed in the inside of gesture adjusting module (6), and gesture adjusting module (6) install in the inside of polarization angle adjusting module (7), a shading section of thick bamboo (9) is installed to polarization angle adjusting module (7) medial surface, shading section of thick bamboo (9) are extending structure.
4. The terahertz polarization adjustment system based on the metal wire grid terahertz wire polarizer is in accordance with claim 1, wherein: attitude adjustment module (6) is including adjusting shell (61), it is equipped with dish spring (62) to adjust shell (61) inside, dish spring (62) outside terminal surface and one side end connection of leading linear polarizer (5) and rearmounted linear polarizer (8), and the outside of leading linear polarizer (5) and rearmounted linear polarizer (8) another side terminal surface is equipped with adjustment handle (63), there is position control circle (64) in adjustment handle (63) outside through threaded connection, position control circle (64) outside is rotated with adjusting shell (61) and is connected, adjust shell (61) and be the hollow cylinder structure, and the hole terminal surface symmetry of adjusting shell (61) is equipped with four spout (65).
5. The terahertz polarization adjustment system based on the metal wire grid terahertz wire polarizer is in accordance with claim 1, wherein: the outer side end faces of the front linear polarizer (5) and the rear linear polarizer (8) are respectively provided with a guide post (10), and the guide posts (10) are correspondingly arranged in a sliding groove (65) of the adjusting shell (61).
6. The terahertz polarization adjustment system based on the metal wire grid terahertz wire polarizer is in accordance with claim 4, wherein: the number of the adjusting handles (63) is six, the adjusting handles (63) are distributed on the outer end face of the position adjusting ring (64) in a surrounding mode, and angle marked lines are arranged on the outer end face of the position adjusting ring (64).
7. The terahertz polarization adjustment system based on the metal wire grid terahertz wire polarizer is in accordance with claim 1, wherein: polarization angle adjusting module (7) include shell body (71), shell body (71) medial surface is connected with light-shielding tube (9), and shell body (71) and one side terminal surface that light-shielding tube (9) are connected install step motor (72), the main shaft end-to-end connection of step motor (72) has gear (73), gear (73) outside meshing has ring gear (74), the outer terminal surface and the adjusting shell (61) fixed connection of ring gear (74).
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| CN202111360978.5A CN114063308A (en) | 2021-11-17 | 2021-11-17 | Terahertz polarization adjusting system based on metal wire grid terahertz wire polarizer |
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| CN202111360978.5A CN114063308A (en) | 2021-11-17 | 2021-11-17 | Terahertz polarization adjusting system based on metal wire grid terahertz wire polarizer |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6087442A (en) * | 1983-10-19 | 1985-05-17 | Hitachi Ltd | Polarized beam splitter |
| JP2003121764A (en) * | 2001-10-18 | 2003-04-23 | Nippon Telegr & Teleph Corp <Ntt> | Optical switch using rotary wedge prism and optical switch module |
| US20100090112A1 (en) * | 2006-10-10 | 2010-04-15 | Hamamatsu Photonics K.K. | Single terahertz wave time-waveform measuring device |
| CN102882107A (en) * | 2012-10-22 | 2013-01-16 | 上海理工大学 | Method capable of adjusting polarization and intensity of terahertz wave rapidly and continuously |
| US20130293888A1 (en) * | 2011-02-15 | 2013-11-07 | Kla-Tencor Corporation | Composite Polarizer With Adjustable Polarization Angles |
| CN103872572A (en) * | 2014-03-13 | 2014-06-18 | 中国科学院福建物质结构研究所 | Self-Q-switched cross-polarized dual-wavelength pulse laser |
| US20150124148A1 (en) * | 2013-11-07 | 2015-05-07 | Bryce T. Osoinach | Devices having automatically adjustable polarizers and related operating methods |
| JP2018017866A (en) * | 2016-07-27 | 2018-02-01 | 株式会社リコー | Optical scanner, image irradiation unit and image display device |
| US20180047856A1 (en) * | 2015-03-02 | 2018-02-15 | University Of Maryland, College Park | Plasmon-enhanced terahertz graphene-based photodetector and method of fabrication |
| CN108110610A (en) * | 2017-12-27 | 2018-06-01 | 厦门思科图光电科技有限公司 | A kind of adjustable light isolator and its regulative mode |
-
2021
- 2021-11-17 CN CN202111360978.5A patent/CN114063308A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6087442A (en) * | 1983-10-19 | 1985-05-17 | Hitachi Ltd | Polarized beam splitter |
| JP2003121764A (en) * | 2001-10-18 | 2003-04-23 | Nippon Telegr & Teleph Corp <Ntt> | Optical switch using rotary wedge prism and optical switch module |
| US20100090112A1 (en) * | 2006-10-10 | 2010-04-15 | Hamamatsu Photonics K.K. | Single terahertz wave time-waveform measuring device |
| US20130293888A1 (en) * | 2011-02-15 | 2013-11-07 | Kla-Tencor Corporation | Composite Polarizer With Adjustable Polarization Angles |
| CN102882107A (en) * | 2012-10-22 | 2013-01-16 | 上海理工大学 | Method capable of adjusting polarization and intensity of terahertz wave rapidly and continuously |
| US20150124148A1 (en) * | 2013-11-07 | 2015-05-07 | Bryce T. Osoinach | Devices having automatically adjustable polarizers and related operating methods |
| CN103872572A (en) * | 2014-03-13 | 2014-06-18 | 中国科学院福建物质结构研究所 | Self-Q-switched cross-polarized dual-wavelength pulse laser |
| US20180047856A1 (en) * | 2015-03-02 | 2018-02-15 | University Of Maryland, College Park | Plasmon-enhanced terahertz graphene-based photodetector and method of fabrication |
| JP2018017866A (en) * | 2016-07-27 | 2018-02-01 | 株式会社リコー | Optical scanner, image irradiation unit and image display device |
| CN108110610A (en) * | 2017-12-27 | 2018-06-01 | 厦门思科图光电科技有限公司 | A kind of adjustable light isolator and its regulative mode |
Non-Patent Citations (1)
| Title |
|---|
| ISTAM, M 等: "Terahertz surface plasmons propagation through periodically tilted pillars and control on directional properties", 《JOURNAL OF PHYSICS D-APPLIED PHYSICS》, vol. 49, no. 43, 2 November 2016 (2016-11-02), pages 435104 - 1 * |
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