CN103837478A - Apparatus for measuring spin Hall effect of light - Google Patents
Apparatus for measuring spin Hall effect of light Download PDFInfo
- Publication number
- CN103837478A CN103837478A CN201210481601.XA CN201210481601A CN103837478A CN 103837478 A CN103837478 A CN 103837478A CN 201210481601 A CN201210481601 A CN 201210481601A CN 103837478 A CN103837478 A CN 103837478A
- Authority
- CN
- China
- Prior art keywords
- hall effect
- spin hall
- light
- glass rod
- cylindrical glass
- 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.)
- Pending
Links
Images
Landscapes
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses an apparatus for measuring the spin Hall effect of light. A laser, Glan laser polarizers, tunable liquid crystal wave plates, a rectangular prism, a cylindrical glass rod with grooves, a fine tuning platform, a 1/4 wave plate , an imaging lens and an image sensor are sequentially arranged to form the apparatus with a composite structure. The fine turning platform is utilized to repeatedly finely turn the position of the cylindrical glass rod with grooves, so the spin Hall effect of reflected light can be highly preciously measured. The rotation of the fine turning platform is utilized to conveniently research and analyze a plurality of small samples.
Description
Technical field
what the present invention relates to is a kind of optical measuring device of thermometrically technical field, specifically a kind of device of light spin Hall effect.
Background technology
in recent years, along with the continuous research of classical Hall effect is goed deep into, it is found that a kind of novel Hall effect--spin Hall effect, the particularly light of uncharged particle photon spin Hall effect (Spin Hall Effect of Light, SHEL).But the dependence test measuring equipment of the Hall effect of light spin at present but can not meet current research needs.
through the retrieval of prior art is found, Bliokh K Y, Niv A, Kleiner V, the people such as Hasman E are at Nature Photonics 2 (12), pp748-753,2008 write articles " Geometrodynamics of spinning light " (gemetrodynamics of light spin), SHEL experimental provision when this technology has proposed that a measuring beam transmits in cylindrical glass rod, but this device can only be tested thicker glass bar, for the aligning of the higher optical fiber of accuracy requirement time, can run into larger difficulty.So in actual use, this device dirigibility deficiency, should use and be subject to more restriction.
china application number CN201010199392.0, application publication number CN102194487A, in this patent, disclose a kind of photon echo devices and methods therefor, its object is to solve limited echo efficiency problem, can overcome existing restriction storage time that is limited to spin phase shift time.But do not take measures on customs clearance to strengthen the precision of measuring light spin Hall effect.
u.S. Patent number: US 8,088,615, " Optical component for observing a nanometric sample; system comprising same; analysis method using same; and uses thereof " (optical element and the use thereof of analysis and observation nanoscale sample), this technology discloses a kind of optical module relating to for observing nanoscale sample, comprising the index plate of a substrate and predetermined thickness, can obtain higher image contrast and precision.But there is no the application of explanation aspect measurement light spin Hall effect.
to sum up, although the device of light spin Hall effect has obtained certain research, in document, have no the device that report can high precision measurement light spin Hall effect.
Summary of the invention
the present invention is directed to prior art above shortcomings, a kind of device of light spin Hall effect is provided, use this device can obtain higher precision, and can make research object obtain certain expansion.
the present invention is achieved by the following technical solutions, the present invention includes: set gradually and form composite structure laser instrument, Glan laser polarization mirror, tunable liquid crystal wave plate, right-angle prism, be with reeded cylindrical glass rod, fine adjustment stage, quarter wave plate, imaging len, imageing sensor.
described laser instrument is that wavelength is the ultraviolet laser (Nd:YVO of 355 nm
4
crystal is as gain media).
described is the glass bar that marks the different semicircle grooves of diameter on cylindrical glass rod with reeded cylindrical glass rod.
the described diameter with reeded cylindrical glass rod fovea superior grain is 100-1000 μ m.
described fine adjustment stage can make to be with reeded cylindrical glass rod around its axis of symmetry rotation.
the axis of symmetry rotational speed of the described reeded cylindrical glass rod of fine adjustment stage strip winding is 0.01-0.2 rad/s.
described fine adjustment stage can be used the speed of 30 μ m/s to finely tune in the horizontal direction.
reeded cylindrical glass rod and fine adjustment stage are with in utilization of the present invention, on the test basis that meets traditional cylindrical glass bar, can also in groove, place the optical fiber of different-diameter and study, add the adjustment of fine adjustment stage, higher precision be can obtain, more material and sample tested.
to sum up, the present invention is simple in structure, easy to use, when use, only the cylindric material of the different thicknesses that will study need to be placed in groove, just can carry out test and the research of the light spin Hall effect of degree of precision.
Accompanying drawing explanation
fig. 1 is structural representation of the present invention.
Embodiment
below embodiments of the invention are elaborated, the present embodiment is implemented under take technical solution of the present invention as prerequisite, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
embodiment 1
as shown in Figure 1, the device of the spin of the light described in the present embodiment Hall effect comprises: laser instrument 1, Glan laser polarization mirror 2, tunable liquid crystal wave plate 3, right-angle prism 4, the groove 6 with on reeded cylindrical glass rod 5, glass bar, fine adjustment stage 7, quarter wave plate 8, imaging len 9, imageing sensor 10.
in the present embodiment, described laser instrument 1 is that wavelength is the ultraviolet laser (Nd:YVO of 355 nm
4
crystal is as gain media).
in the present embodiment, described Glan laser polarization mirror 2 is 2-5 group.
in the present embodiment, described tunable liquid crystal wave plate 3 is 2-5 group.
in the present embodiment, described is the glass bars that mark the different semicircle grooves of diameter on cylindrical glass rod with reeded cylindrical glass rod 5.
in the present embodiment, the described reeded cylindrical glass rod 5 of being with can be around its axis of symmetry rotation.
in the present embodiment, described to be with reeded cylindrical glass rod 5 rotational speeies be 0.01-0.2 rad/s.
in the present embodiment, the diameter of the groove 6 on described glass bar is 100-1000 μ m.
in the present embodiment, the quantity of the groove 6 on described glass bar is 1-100.
in the present embodiment, described fine adjustment stage 7 can be used the speed of 30-500 μ m/s to finely tune in the horizontal direction.
the principle of work of the present embodiment is: for the catoptrical light spin of the measurement Hall effect of degree of precision, use fine adjustment stage repeatedly to finely tune the position with reeded cylindrical glass rod, until imageing sensor obtains good output.For the more tiny sample to similar optical fiber carries out high precision measurement, design and can fix the groove of its position, then coordinated the adjustment of fine adjustment stage, can carry out research and analysis to tiny sampler comparatively easily.
as shown in table 1, it is as shown in the table for the application request of the present embodiment.
one group of modular design parameter of device of table 1 light spin Hall effect
| Laser wavelength (nm) | 355 |
| Glan laser polarization mirror quantity (group) | 2 |
| Tunable liquid crystal wave plate quantity (group) | 2 |
| Be with reeded cylindrical glass rod 5 rotational speeies (rad/s) | 0.01 |
| (μ m) for the diameter of the groove on glass bar | 100 |
| The quantity (individual) of the groove on glass bar | 20 |
| Fine adjustment stage speed (μ m/s) in the horizontal direction | 30 |
to sum up, comprehensive utilization fine adjustment stage be with reeded cylindrical glass rod, the catoptrical light spin of measurement Hall effect that can degree of precision, and utilize the rotation of fine adjustment stage, can carry out research and analysis to multiple tiny samplers easily.
although content of the present invention has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.Read after foregoing those skilled in the art, for multiple modification of the present invention and substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (4)
1. a device for light spin Hall effect, set gradually and form composite structure laser instrument, Glan laser polarization mirror, tunable liquid crystal wave plate, right-angle prism, be with reeded cylindrical glass rod, fine adjustment stage, quarter wave plate, imaging len, imageing sensor.
2. the device of light spin Hall effect according to claim 1, is characterized in that, the diameter of the groove on described glass bar is 100-1000 μ m.
3. the device of light spin Hall effect according to claim 1, is characterized in that, the quantity of the groove on described glass bar is 1-100.
4. the device of light spin Hall effect according to claim 1, is characterized in that, described fine adjustment stage can be used the speed of 30-500 μ m/s to finely tune in the horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210481601.XA CN103837478A (en) | 2012-11-23 | 2012-11-23 | Apparatus for measuring spin Hall effect of light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210481601.XA CN103837478A (en) | 2012-11-23 | 2012-11-23 | Apparatus for measuring spin Hall effect of light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103837478A true CN103837478A (en) | 2014-06-04 |
Family
ID=50801195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210481601.XA Pending CN103837478A (en) | 2012-11-23 | 2012-11-23 | Apparatus for measuring spin Hall effect of light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103837478A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569622A (en) * | 2014-12-24 | 2015-04-29 | 复旦大学 | Efficient microwave polarization detection device based on photonic spin Hall effect |
| CN107807320A (en) * | 2017-09-27 | 2018-03-16 | 福州大学 | Distinguish that the photic inverse logic gates of semiconductor are intrinsic and the method for extrinsic mechanism |
-
2012
- 2012-11-23 CN CN201210481601.XA patent/CN103837478A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569622A (en) * | 2014-12-24 | 2015-04-29 | 复旦大学 | Efficient microwave polarization detection device based on photonic spin Hall effect |
| CN104569622B (en) * | 2014-12-24 | 2017-07-07 | 复旦大学 | Polarized microwave detection means based on spin of photon Hall effect |
| CN107807320A (en) * | 2017-09-27 | 2018-03-16 | 福州大学 | Distinguish that the photic inverse logic gates of semiconductor are intrinsic and the method for extrinsic mechanism |
| CN107807320B (en) * | 2017-09-27 | 2019-12-31 | 福州大学 | Method for distinguishing intrinsic and extrinsic mechanisms of semiconductor photoinduced inverse spin Hall effect |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103512653A (en) | Device capable of measuring spin Hall effect of reflected light | |
| CN101592537B (en) | Device and method for measuring stress of optical glass | |
| Sourisseau | Polarization measurements in macro-and micro-Raman spectroscopies: molecular orientations in thin films and azo-dye containing polymer systems | |
| CN108120702B (en) | Super-resolution fluorescence lifetime imaging method and device based on parallel detection | |
| CN102589850B (en) | System for precisely measuring phase delay of wave plate and implementation method of system | |
| CN110082297B (en) | Detection method and spectral measurement system for two-dimensional layered material heterojunction stacking sequence | |
| CN113607750B (en) | Device and method for detecting subsurface defect of optical element | |
| KR100350458B1 (en) | Apparatus and method for measuring residual stress and photoelastic effect of optical fiber | |
| CN110398479A (en) | A kind of microspectrum measuring device and method based on optical chip substrate | |
| CN104165582A (en) | Phase shift point-diffraction interference detection device and method based on reflecting grating | |
| JP2018525680A (en) | Optical film having optical axis, and system and method for processing the same | |
| Bloess et al. | Microscopic structure in a Shpol'skii system: A single-molecule study of Dibenzanthanthrene in n-Tetradecane | |
| CN110823388A (en) | Film thermal response single-pulse detection method under ultrafast laser photon time stretching | |
| CN103940537A (en) | Material microscopic stress testing system | |
| CN103308224A (en) | Semiconductor material micro-area stress test system | |
| Littleton et al. | Spectral interferometric implementation with passive polarization optics of coherent anti-Stokes Raman scattering | |
| CN104122209B (en) | Visual observing system for growth process of microcrystalline silicon film and measurement method | |
| CN103837478A (en) | Apparatus for measuring spin Hall effect of light | |
| CN103424363A (en) | Non-rotary optical rotation solution gauge and method for measuring specific rotation of optical rotation solution through gauge | |
| CN105445227A (en) | Method and apparatus for observing one-dimensional nano-material | |
| CN103438803B (en) | Computer vision technique accurately measures the method for Rectangular Parts size across visual field | |
| CN103837473A (en) | Laser having composite structure | |
| CN107462525A (en) | A kind of spectral signature parameter method of testing of linear variable filter | |
| Lee et al. | Segmental dynamics of polymer by rotational fluorescence correlation microscopy | |
| CN103674318A (en) | Surface temperature distribution detecting method for micron-scale region of integrated circuit chip based on colloidal PbSe quantum dots |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140604 |