CN201383042Y - Polarization-distributed adjustable vector beam generating device - Google Patents
Polarization-distributed adjustable vector beam generating device Download PDFInfo
- Publication number
- CN201383042Y CN201383042Y CN200820165972U CN200820165972U CN201383042Y CN 201383042 Y CN201383042 Y CN 201383042Y CN 200820165972 U CN200820165972 U CN 200820165972U CN 200820165972 U CN200820165972 U CN 200820165972U CN 201383042 Y CN201383042 Y CN 201383042Y
- Authority
- CN
- China
- Prior art keywords
- conical surface
- catoptron
- reflection type
- reflection
- polarizer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a polarization-distributed adjustable vector beam generating device, which consists of a light source, a reflection-type conical-surface reflector, a conical-surface polarization apparatus, an inner-reflection-type conical-surface reflector and two parallel half wave plates, wherein the light source is arranged on a symmetric axis of a system, the reflection-type conical-surface reflector, the conical-surface polarization apparatus and the inner-reflection-type conical-surface reflector are sequentially arranged on an emitting light path of the light source, and the two half wave plates are provided with a rotating movable part. The emitting beam of the light source is reflected by an outer-reflection conical-surface reflector to form a conical-surface transmitting beam with a radial transmission batch and an axial transmission batch, and the polarization state of the beam is changed by the conical-surface polarization apparatus, and the beam is reflected by the inner-reflection-type conical-surface reflector to form a vector beam which is distributed in a polarization way, and the polarization distribution of the beam can be adjusted by adjusting an angle between an optical axis of the two half wave plates through the rotation movable part. The device has the advantages of reasonable structure design, less part, convenient application and the like.
Description
Technical field
The utility model is relevant with beam generated device, the generation device of the vector beam that particularly a kind of polarisation distribution is adjustable.Be mainly used in fields such as Laser Micro-Machining, the little manipulation of optics, optical information storage, light and matter interaction.
Technical background
In light polarization research, it is found that polarization state is not confined to our common linear polarization, circular polarization, elliptic polarization, radial polarisation, position angle polarization, circulation polarized light beam etc. have also occurred.2000, people such as research centre K.S.Youngworth of U.S. University of Rochester and T.G.Brown publish an article on Opt.Express, calculated radial polarisation light and the position angle polarized light character under high-NA objective focuses in theory, obtained noticeable result (K.S.Youngworth and T.G.Brown, Opt.Express 7,77 (2000)).Wherein radial polarisation light can obtain strong non-propagation longitudinal field component after by the lens focus of high-NA, thereby forms sharp-pointed focus, and the position angle polarized light can obtain the hollow light field by focusing on.These notional results have caused the extensive attention of optics circle, and the optics worker also begins to drop into great effort research vector beam, especially its production method.People such as Israel scientist Z.Bomzon published an article on Opt.Lett. in 2002, utilize the sub-wavelength dielectric grid with spatial variations of ad hoc structure, radial polarized light beam and two kinds of special vector beams of position angle light beam (Z.Bomzon et al have been obtained in 10.6 micron wave strong points, Optics Letters, 27,285 (2002)).People such as the M.Neil of univ cambridge uk utilized wollaston prism and the ferroelectric spatial light modulator of binary etc. to design an optical system in 2002, not only obtained radial polarized light beam and position angle light beam but also obtained polarization state between (the M.A.A.Neil et al of a series of vector beams between the two, Optics Letters, 27,1929 (2002)).The people such as K.Toussaint of Univ Chicago USA in 2005 utilize the optical system of mainly being made up of two diffraction optical elements of particular design, generated with the operation class of M.Neil like vector beam (K.C.Toussaint et al, Optics Letters, 30,2846 (2005)).The people such as Sato of northeastern Japan university in 2005 utilize conical Brewster design laserresonator to generate radial polarized light beam.And, utilize C-cutting Nd:YVO again then in 2006
4The birefringence of crystal has designed special laserresonator and has generated radial polarized light beam (Y.Kozawa and S.Sato, Optics Letters, 30,3063 (2005): K.Yonezawa, Y.Kozawa, and S.Sato, Optics Letters, 31,2151 (2006)).In March, 2007, the people such as C.Maurer of Innsbruck ,Austria medical university publish an article at New Jour.Phys., utilize composition optical systems such as Wollaston prism and reflective spatial light modulator to generate special vector beam (the C.Maurer et al of the such class of Laguerre-Gaussian beam, New J.Phys.9,78 (2007)).In above-described research, the vector beam polarisation distribution that generates is non-adjustable, be generally a certain distribution, and when needs generate the vector beam of different polarization distribution, must make bigger adjustment to light path, this has just increased the technical difficulty of the vector beam that generates different polarization states and the complicacy on the test operation, is unfavorable for that vector beam obtains to use widely.
The utility model content
The technical problems to be solved in the utility model has been to overcome the deficiency of above-mentioned technology formerly, and the generation device that a kind of step is simple, realize the vector beam that polarisation distribution easily is adjustable is provided.
Technical problem to be solved in the utility model also is to provide the generation device of a kind of reasonable in design, vector beam that parts are few, easy to use, function is easy to expand polarisation distribution is adjustable.
The utility model solves the problems of the technologies described above the generation device that the technical scheme that is adopted provides the adjustable vector beam of polarisation distribution, its design feature is: comprise light source, external reflection formula conical surface catoptron, conical surface polarizer, reflection type conical surface catoptron, with the half-wave plate that has the two parallel placements of rotating moving-member.External reflection formula conical surface catoptron, conical surface polarizer and reflection type conical surface catoptron place on the light source outgoing beam light path successively; The light source outgoing beam is launched light beam by the circular conical surface that external reflection formula conical surface mirror reflects is formed with radial propagation component and axial propagation component, is equipped with the conical surface polarizer on the circular conical surface emission beam path; Reflection type conical surface catoptron is arranged on the light path of circular conical surface emission light beam after through the conical surface polarizer, circular conical surface emission light beam by reflection type conical surface mirror reflects after, form the vector beam of certain polarization state of propagating along system's axis of symmetry.Regulate two half-wave plate optical axis included angle scalable polarisation distribution by the rotation moving-member.
The reflecting surface of reflection type conical surface catoptron described in the utility model is parallel with the reflecting surface of external reflection formula conical surface catoptron.
The reflecting surface of the reflecting surface of reflection type conical surface catoptron described in the utility model and external reflection formula conical surface catoptron all is not 45 ° with system axis of symmetry angle.
The conical surface normal direction of conical surface polarizer described in the utility model is greater than 80 ° with the circular conical surface emission beam angle scope that is formed by external reflection formula conical surface mirror reflects, and is less than or equal to 90 °.
External reflection formula conical surface catoptron described in the utility model is the external reflection formula conical surface catoptron of cone plating reflectance coating, or is the Conical Shells With curved surface external reflection formula catoptron of reflectance coating formation.
Reflection type conical surface catoptron described in the utility model is the reflection type conical surface catoptron of cone plating reflectance coating, or is the Conical Shells With curved surface reflection type catoptron of reflectance coating formation.
Conical surface polarizer described in the utility model is the conical surface polarizing coating, or is conical surface shell-type polarizer.
The utility model compared with prior art has the following advantages and effect: the generation of the vector beam that polarisation distribution of the present utility model is adjustable is to carry out the adjusting of polarization state through macroscopical optics after utilizing direction of beam propagation to change, and has that reasonable in design, parts are few, easy to use, function is easy to advantages such as expansion.
Description of drawings
Fig. 1 is the synoptic diagram of the utility model embodiment.
Fig. 2 is a kind of polarisation distribution light beam synoptic diagram of the utility model embodiment.
Embodiment
Below in conjunction with embodiment the utility model is described in further detail, following examples are to explanation of the present utility model, be a kind of application form of the present utility model, and the utility model are not limited to following examples.
Fig. 1 is the synoptic diagram of the utility model embodiment, and its design feature is: comprise light source 1, external reflection formula conical surface catoptron 3, circular conical surface polarizer 4, reflection type conical surface catoptron 2 and have half-wave plate 5 and the half-wave plate 6 that rotates moving-member.External reflection formula conical surface catoptron 3, circular conical surface polarizer 4 and reflection type conical surface catoptron 2 are along same system axis of symmetry O
1O
2Place successively on the light source 1 outgoing beam light path; Light source 1 outgoing beam is reflected to form the circular conical surface emission light beam of radial propagation component and axial propagation component by external reflection formula conical surface catoptron 3, be equipped with circular conical surface polarizer 4 on the circular conical surface emission beam path, the conical surface normal direction of circular conical surface polarizer 4 and circular conical surface emission beam angle are 90 °; Circular conical surface emission light beam behind the process circular conical surface polarizer 4 forms along the axis of symmetry O of system after being reflected by reflection type conical surface catoptron 2
1O
2The vector beam of a kind of polarization state of propagating, successively by having half-wave plate 5 and the half-wave plate 6 that rotates moving-member, regulate the polarization direction that the optical axis included angle of half-wave plate 5 and half-wave plate 6 can be regulated the vector light beam by rotating moving-member, the reflecting surface of described reflection type conical surface catoptron is parallel with the reflecting surface of external reflection formula conical surface catoptron.
Reflecting surface and system's axis of symmetry angle of the reflecting surface of reflection type conical surface catoptron 2 and external reflection formula conical surface catoptron 3 are 60 ° in the present embodiment, external reflection formula conical surface catoptron 3 is the external reflection formula conical surface catoptron of cone plating reflectance coating, the Conical Shells With curved surface reflection type catoptron that reflection type conical surface catoptron 2 constitutes for reflectance coating, circular conical surface polarizer 3 is the conical surface polarizing coating, and light source 1 is circular polarization output gas laser.
The vector beam generation device that a kind of polarisation distribution that the utility model embodiment is provided is adjustable, its course of work is: light source 1 is along the axis of symmetry O of system
1O
2Outside reflective conical surface catoptron 3 outgoing beams; After incident beam is reflected by external reflection formula conical surface catoptron 3, be formed with the circular conical surface emission light beam of radial propagation component and axial propagation component; Behind the circular conical surface emission light beam process circular conical surface polarizer 4, directive reflection type conical surface catoptron 2 by 2 reflections of reflection type conical surface catoptron, forms along the vector beam of a kind of polarization state of system's axis of symmetry propagation.Can regulate the polarization direction of vector light beam by the optical axis included angle of rotation moving-member adjusting half-wave plate 5 and half-wave plate 6.
Fig. 2 is a kind of polarization state distribution schematic diagram of the utility model embodiment output beam, arrow is represented the polarization direction, present embodiment has been realized the generation of the vector beam that polarisation distribution is adjustable, and has that reasonable in design, parts are few, easy to use, function is easy to advantages such as expansion.
Claims (9)
1, the generation device of the adjustable vector beam of a kind of polarisation distribution is characterized by:
On a, the light source outgoing beam light path successively with axis of symmetry be provided with external reflection formula conical surface catoptron, conical surface polarizer, reflection type conical surface catoptron;
B, external reflection formula conical surface catoptron conical tip be towards light beam of light source outgoing one end setting, the light source outgoing beam by external reflection formula conical surface mirror reflects after, form circular conical surface emission light beam;
The reflecting surface of c, reflection type conical surface catoptron and external reflection formula conical surface mirror reflection surface are arranged in parallel; The conical surface polarizer is arranged between external reflection formula conical surface catoptron and the reflection type conical surface catoptron on the light path, changes light polarization; Behind the circular conical surface emission light beam process conical surface polarizer, formed the vector beam of propagating along system's axis of symmetry after the reflection type conical surface mirror reflects;
The light beam outgoing one sidelight road of d, reflection type conical surface catoptron is provided with two half-wave plates, the optics workplace of two half-wave plates is parallel to each other, the optical axis included angle scalable of two half-wave plates, the vector beam of reflection type conical surface mirror reflects has formed the adjustable vector beam of polarisation distribution through two half-wave plates successively.
2, the generation device of the adjustable vector beam of a kind of polarisation distribution according to claim 1, it is characterized in that: the reflecting surface of described reflection type conical surface catoptron is parallel with the reflecting surface of external reflection formula conical surface catoptron.
3, the generation device of the adjustable vector beam of a kind of polarisation distribution according to claim 1 is characterized in that: the reflecting surface of the reflecting surface of described reflection type conical surface catoptron and external reflection formula conical surface catoptron all is not 45 ° with system axis of symmetry angle.
4, the generation device of the adjustable vector beam of a kind of polarisation distribution according to claim 1, it is characterized in that: the conical surface normal direction of described conical surface polarizer is greater than 80 ° with the circular conical surface emission beam angle scope that is formed by external reflection formula conical surface mirror reflects, and is less than or equal to 90 °.
5, based on the generation device of the adjustable vector beam of the described a kind of polarisation distribution of claim 1, it is characterized in that: comprise light source, external reflection formula conical surface catoptron, conical surface polarizer and reflection type conical surface catoptron, external reflection formula conical surface catoptron, conical surface polarizer and reflection type conical surface catoptron, the half-wave plate that has the two parallel placements of rotating moving-member places on the light source outgoing beam light path symmetrically successively; The light source outgoing beam is launched light beam by the circular conical surface that external reflection formula conical surface mirror reflects is formed with radial propagation component and axial propagation component, is equipped with the conical surface polarizer on the circular conical surface emission beam path; Reflection type conical surface catoptron is arranged on the light path of circular conical surface emission light beam after through the conical surface polarizer.
6, the generation device of the adjustable vector beam of a kind of polarisation distribution according to claim 5 is characterized in that: the reflecting surface of the reflecting surface of described reflection type conical surface catoptron and external reflection formula conical surface catoptron all is not 45 ° with system axis of symmetry angle.
7, the generation device of the adjustable vector beam of a kind of polarisation distribution according to claim 5, it is characterized in that: described external reflection formula conical surface catoptron is the external reflection formula conical surface catoptron of cone plating reflectance coating, or is the Conical Shells With curved surface external reflection formula catoptron of reflectance coating formation.
8, the generation device of the adjustable vector beam of a kind of polarisation distribution according to claim 5, it is characterized in that: described reflection type conical surface catoptron is the reflection type conical surface catoptron of cone plating reflectance coating, or is the Conical Shells With curved surface reflection type catoptron of reflectance coating formation.
9, the generation device of the adjustable vector beam of a kind of polarisation distribution according to claim 5, it is characterized in that: described conical surface polarizer is the conical surface polarizing coating, or is conical surface shell-type polarizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820165972U CN201383042Y (en) | 2008-10-23 | 2008-10-23 | Polarization-distributed adjustable vector beam generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820165972U CN201383042Y (en) | 2008-10-23 | 2008-10-23 | Polarization-distributed adjustable vector beam generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201383042Y true CN201383042Y (en) | 2010-01-13 |
Family
ID=41526513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200820165972U Expired - Fee Related CN201383042Y (en) | 2008-10-23 | 2008-10-23 | Polarization-distributed adjustable vector beam generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201383042Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103676184A (en) * | 2014-01-03 | 2014-03-26 | 山东师范大学 | Dual-channel vector spatial light modulator |
| CN105629495A (en) * | 2016-04-07 | 2016-06-01 | 北京信息科技大学 | Radial polarization beam generation device on the basis of radial polarization splitting prism |
-
2008
- 2008-10-23 CN CN200820165972U patent/CN201383042Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103676184A (en) * | 2014-01-03 | 2014-03-26 | 山东师范大学 | Dual-channel vector spatial light modulator |
| CN103676184B (en) * | 2014-01-03 | 2015-08-26 | 山东师范大学 | Dual-channel vector spatial light modulator |
| CN105629495A (en) * | 2016-04-07 | 2016-06-01 | 北京信息科技大学 | Radial polarization beam generation device on the basis of radial polarization splitting prism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8094374B2 (en) | Beam shaping module | |
| CN101363964B (en) | Adjustable ring vector light beam producing system | |
| CN103293696B (en) | Device for generating arbitrary vector beams based on Mach-Zehnder interferometer | |
| CN109196737B (en) | Efficient laser system for third harmonic generation | |
| CN202267786U (en) | Reflectivity-variable laser beam splitter | |
| CN103326224B (en) | A kind of radial polarization beam laser | |
| CN101387759A (en) | Light polarization regulating and shaping system | |
| CN201383042Y (en) | Polarization-distributed adjustable vector beam generating device | |
| CN102375247A (en) | Polarized coupling system | |
| CN110133856A (en) | A kind of system and method generating salt free ligands vector Bezier light field | |
| CN201518073U (en) | Polarization distribution adjustable vector beam generation and light distribution detection device | |
| CN201373948Y (en) | Beam polarization state converting and regulating system | |
| CN101382664B (en) | Polarization state non-uniform distribution light beam generating method and apparatus thereof | |
| CN104505703A (en) | Laser device for outputting flattened beams | |
| CN101382663A (en) | Circulation polarized light beam generating system | |
| CN210167629U (en) | Laser device with double wavelengths | |
| CN102967943A (en) | High-transparency polarization module | |
| CN102263364B (en) | Transverse plane pump laser capable of high efficiently using pump light | |
| CN201278063Y (en) | Light intensity distribution regulating apparatus for focal point zone | |
| CN111992878A (en) | Device and method for reducing time required by femtosecond laser introduction structure | |
| Chen et al. | Waveguides and waveguide arrays formed by incoherent light in photorefractive materials | |
| Liu et al. | 2 µm cylindrical vector beam generation from a c-cut Tm: CaYAlO 4 crystal resonator | |
| CN218938559U (en) | Optical fiber coupling system with adjustable output light power ratio for atomic physics research | |
| CN110635340A (en) | Novel adjustable miniature human eye safety solid laser | |
| CN109683425B (en) | Polarization-independent photon frequency conversion quantum device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100113 Termination date: 20101023 |