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A device that measures the optical spin Hall effect of reflected light

A technology of Hall effect and optical spin, which is applied in the direction of measuring device, optical radiation measurement, photometry, etc. The application of the Hall effect and other problems, to achieve the effect of simple structure, high precision and convenient use

Inactive Publication Date: 2016-12-21
盐城海之诺机械有限公司
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Problems solved by technology

However, the application in measuring the optical spin Hall effect is not described
[0006]In summary, although the optical spin Hall effect device has been studied to a certain extent, there is no report in the literature that can test the optical spin Hall effect with high precision. device

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  • A device that measures the optical spin Hall effect of reflected light

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Embodiment 1

[0020] like figure 1 As shown, the device described in this embodiment that can measure the optical spin Hall effect of reflected light includes: a laser 1, a Glan laser polarizer 2, a tunable liquid crystal wave plate 3, a rectangular prism 4, a grooved Cylindrical glass rod 5, groove 6 on the glass rod, fine-tuning platform 7, 1 / 4 wave plate 8, imaging lens 9, image sensor 10.

[0021] In the present embodiment, described laser device 1 is the ultraviolet laser device (Nd:YVO 4 crystal as the gain medium).

[0022] In this embodiment, the Glan laser polarizers 2 are in 2-5 groups.

[0023] In this embodiment, there are 2-5 groups of tunable liquid crystal wave plates 3 .

[0024] In this embodiment, the cylindrical glass rod with grooves 5 is a glass rod in which semicircular grooves with different diameters are drawn on the cylindrical glass rod.

[0025] In this embodiment, the cylindrical glass rod 5 with grooves can rotate around its axis of symmetry.

[0026] In th...

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Abstract

The invention discloses a device capable of measuring the optical spin Hall effect of reflected light. The device includes a laser, a Glan laser polarizer, a tunable liquid crystal wave plate, a right-angle prism, and a compound structure arranged in sequence and composed of Grooved cylindrical glass rod, fine-tuning platform, 1 / 4 wave plate, imaging lens, image sensor. The invention uses a fine-tuning platform to repeatedly fine-tune the position of the cylindrical glass rod with grooves, and can measure the optical spin Hall effect of reflected light with high precision. And by using the rotation of the fine-tuning platform, it is convenient to conduct research and analysis on multiple tiny samples.

Description

technical field [0001] The invention relates to an optical measurement device in the technical field of test and measurement, in particular to a device capable of measuring the optical spin Hall effect of reflected light. Background technique [0002] In recent years, with the continuous in-depth study of the classical Hall effect, people have discovered a new type of Hall effect - the spin Hall effect, especially the spin Hall effect of light of uncharged particle photons (Spin Hall Effect of Light , SHEL). However, the relevant test and measurement equipment for the optical spin Hall effect cannot meet the current research needs. [0003] After searching the prior art, it was found that Bliokh KY, Niv A, Kleiner V, Hasman E and others wrote "Geometrodynamics of spinning light" in NaturePhotonics2(12), pp748-753, 2008 (four-dimensional geometric dynamics of light spin) , this technology proposes a SHEL experimental device for measuring the transmission of light beams in c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J1/00G01N21/17
Inventor 康晓洋
Owner 盐城海之诺机械有限公司
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