CN201927364U - Reflecting polarization element for improving polarization ratio of soft X-ray - Google Patents
Reflecting polarization element for improving polarization ratio of soft X-ray Download PDFInfo
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- CN201927364U CN201927364U CN2010202657744U CN201020265774U CN201927364U CN 201927364 U CN201927364 U CN 201927364U CN 2010202657744 U CN2010202657744 U CN 2010202657744U CN 201020265774 U CN201020265774 U CN 201020265774U CN 201927364 U CN201927364 U CN 201927364U
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- polarization
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- type polarization
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Abstract
The utility model discloses a reflecting polarization element for improving polarization ratio of soft X-ray. The polarization element is a reflecting polarization chip made of artificial crystal, and has a reflector surface which is subjected to polishing treatment. The reflecting polarization element made of artificial crystal can acquire soft X-ray with high polarization ratio.
Description
Technical field
The utility model relates to a kind of reflection type polarization element that is used to improve the grenz ray degree of polarization.
Background technology
Polarization characteristic is one of synchrotron radiation light source excellent specific property.In recent years, the grenz ray polarization applied research that utilizes material (especially magnetic material and living matter) that the variation of incident grenz ray polarization intensity and polarization state is carried out is extensively carried out in fields such as biology, chemistry, physics, material science and measuring sciences, and developed many for the valuable measuring method of research material magnetic characteristic, as grenz ray magnetic circular dichroism (mcd) (XMCD), magnet-wire two looks (XMLD), magneto-optic faraday (Faraday) effect and Ke Er (Kerr) effect etc.In these researchs, the polarization state of accurately measuring the incident grenz ray seems of crucial importance.
Because all multifactor influences, synchrotron radiation light monochromatic linear polarization degree of outgoing behind monochromator can not satisfy the needs of experiment usually.In order to obtain the output light of linear polarization Du Genggao, the method that adopts is to increase polarizer (polarizer) in light path usually.
Can distinguish at grenz ray, because the refractive index (real part) of any material is all near 1, and less than 1, material is strong to light absorption, does not have transparency material, thereby the material that can be used as polarizer in other energy ranges can't can be distinguished use at this.Can distinguish at this and now to select multilayer film usually as polarizer.
Can distinguish at grenz ray, narrow band cycle multilayer film and broad band multilayer film two big classes are arranged.The former just just can reach polarization effect preferably at specific wavelength or special angle usually, is unsuitable for doing the polarizer of action oriented research.So, select the broad band multilayer film in actual applications usually for use.
The structure that Soft X-Ray Multilayers now generally adopts two kinds of materials alternately to be coated with, wherein a kind of material is selected high atomic number (absorption layer) usually; Another kind is selected low atomic number material (wall) for use.In addition, the physics of material, chemical stability and mutual contingent reaction all are the key factors that influences x-ray reflectivity.So also need to consider in the selection of material: (1) is chosen in the as far as possible little material of operating wave strong point absorption coefficient as wall; (2) the big as far as possible material of Fresnel reflection coefficient that the absorption layer material will be selected and definite material spacer layer forms; (3) in preparation process, two kinds of materials can form clear, smooth and stable interface; (4) two kinds of materials do not react to each other and spread; Material and interface should be in the heat power equilibrium state; They should have high as far as possible fusing point, and thermal expansivity is close; The influence of extraneous factor does not cause the variation of phase structure or phase transformation or the like.
To the optimizing process of Soft X-Ray Multilayers, be exactly after selected material and rete number, by each parameter of continuous adjustment (as the thickness of rete), obtain having film structure near the objective optics performance.
When being coated with the multilayer film that grenz ray can distinguish, because the thickness of any material is all in nanometer scale, therefore, to having relatively high expectations of preparation, for example the smoothness at the precision of thicknesses of layers, film quality (homogeneity, density, roughness etc.) and interface, roughness etc. are very big for the property effect of polarizer.
In sum, select multilayer film in the prior art, need and require according to concrete experiment purpose multilayer film is carried out the design of film system as polarizer, preparation and application process more complicated, manpower and materials expend greatly.Change these, demand new material and method urgently and come out.
Summary of the invention
The purpose of this utility model provides a kind of reflection type polarization element that is used to improve grenz ray linear polarization degree, and it can overcome the defective of prior art, saves the trouble of design and complicated technology preparation process.
For achieving the above object, the utility model is taked following design proposal:
A kind of reflection type polarization element that is used to improve grenz ray linear polarization degree, this polarizer is the reflection type polarization wafer that artificial lens is made, this reflection type polarization wafer has the mirror surface of polished processing.
Described artificial lens is KTP (potassium titanium oxide phosphate) crystal, RTP (phosphoric acid titanyl rubidium) crystal, Si (silicon) crystal, Ge (germanium) crystal.
The utility model innovative point is: use artificial lens as the reflection type polarization element, substitute existing broad band multilayer film and make polarizer, because artificial lens has accurate, complete periodic structure, symmetry height, defective are few, and the linear polarization degree of the grenz ray after rising partially through the artificial lens polarizer is improved.
The area of described mirror surface is at least and guarantees all to receive from the pairing area size of the light of light source outgoing.
The utility model has the advantages that:
1) utilize the artificial lens of structural integrity can distinguish the reflection type polarization element as grenz ray, when having avoided making polarizer with the broad band multilayer film design of film system and the complicated technology preparation process that must carry out, simplified the experimental implementation process.
2) the broad band multilayer film of prior art employing is made polarizer relatively, the starting material wide material sources of the used artificial lens of the utility model, and processing and preparing technology maturation and cost price are cheap.
Description of drawings
Fig. 1 is the utility model reflection type polarization component structure synoptic diagram.
Below in conjunction with drawings and the specific embodiments the utility model is described in further details:
Embodiment
Main creation point of the present utility model is: the artificial lens wafer is used to make the reflection type polarization element.
As shown in Figure 1, the reflection type polarization element that the utility model is used to improve the grenz ray degree of polarization is that artificial lens is made into reflection type polarization element 1, and this reflection type polarization unit 1 has the mirror surface 11 of polished processing.
Being ultra-smooth after mirror surface 11 polishings of described reflection type polarization unit 1 is advisable.And the area of mirror surface is at least and guarantees all to receive from the pairing area size of the light of light source outgoing.
The artificial lens that the utility model is selected for use answers reflectivity height, thermal stability height and anti-radiation performance strong, can adopt KTP (KTiOPO
4Potassium titanium oxide phosphate), RTP (RbTiOPO
4Phosphoric acid titanyl rubidium), Si (silicon), Ge (germanium) artificial lens.
The concrete preparation method of reflection type polarization element that the utility model is used to improve grenz ray linear polarization degree can be: a crystal face of selected a certain crystal (as KTP (100)), cut with crystal cuting machine (as diamond wire cutting machine, inner circle cutting machine etc.), single-sided polishing, cross-sectional sizes will guarantee that polished surface can the complete light that receives from the light source outgoing.
Adopt the utility model technology, primary source linear polarization degree is about 50%, and after the reflection type polarization element that the utility model is used to improve grenz ray linear polarization degree rose partially, the linear polarization degree of emergent light all can be brought up to more than 98%.
The utility model and prior art (doing polarizer with multilayer film) compare: the appropriate litigation fees of saving is considerable, the multilayer film of prior art grenz ray is to carry out could preparing after selection and the design of film system according to concrete target call, if it is preparation technology, equipment, technology are undesirable, very big to the optical property influence of multilayer film.If differ too big, will prepare again with target call.Generally there are not two multilayer film performances just the same.So the X ray multilayer film does not have standard configuration, buying expenses is also just than higher.Satisfy several ten thousand yuans/sheet of wanting that scientific research uses.And the preparation technology of the utility model artificial lens comparative maturity only need be processed (cutting, polishing etc.) by user's requirement to get final product, and expense is cheap.As seen, the economic results in society obtained of the utility model are appreciable.
Claims (3)
1. reflection type polarization element that is used to improve grenz ray linear polarization degree, it is characterized in that: this polarizer is the reflection type polarization wafer that artificial lens is made, and this reflection type polarization wafer has the mirror surface of polished processing.
2. the reflection type polarization element that is used to improve grenz ray linear polarization degree according to claim 1 is characterized in that: described artificial lens is potassium titanyl oxygenic phosphate(KTP) crystal, phosphoric acid titanyl rubidium crystal, silicon crystal or germanium crystal.
3. the reflection type polarization element that is used to improve grenz ray linear polarization degree according to claim 1 is characterized in that: the area of described mirror surface is at least and guarantees all to receive from the pairing area size of the light of light source outgoing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202657744U CN201927364U (en) | 2010-07-15 | 2010-07-15 | Reflecting polarization element for improving polarization ratio of soft X-ray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202657744U CN201927364U (en) | 2010-07-15 | 2010-07-15 | Reflecting polarization element for improving polarization ratio of soft X-ray |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201927364U true CN201927364U (en) | 2011-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202657744U Expired - Fee Related CN201927364U (en) | 2010-07-15 | 2010-07-15 | Reflecting polarization element for improving polarization ratio of soft X-ray |
Country Status (1)
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| CN (1) | CN201927364U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109844582A (en) * | 2016-10-14 | 2019-06-04 | 住友化学株式会社 | Polarizing film, polarization plates and image display device |
| JP2019191458A (en) * | 2018-04-27 | 2019-10-31 | 住友化学株式会社 | Manufacturing method of polarizing plate |
-
2010
- 2010-07-15 CN CN2010202657744U patent/CN201927364U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109844582A (en) * | 2016-10-14 | 2019-06-04 | 住友化学株式会社 | Polarizing film, polarization plates and image display device |
| CN109844582B (en) * | 2016-10-14 | 2021-06-08 | 住友化学株式会社 | Polarizing plate, and image display device |
| JP2019191458A (en) * | 2018-04-27 | 2019-10-31 | 住友化学株式会社 | Manufacturing method of polarizing plate |
| JP7107734B2 (en) | 2018-04-27 | 2022-07-27 | 住友化学株式会社 | Manufacturing method of polarizing plate |
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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: 20110810 Termination date: 20120715 |