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Vector space change rotational symmetric polarized light obtaining device

A technology of rotational symmetry and vector space, applied in the field of optics, can solve the problems of complex device, high cost, cumbersome operation and light beam generation, etc., and achieve the effect of easy debugging, low cost and simple structure of the device

Active Publication Date: 2016-07-20
HUZHOU ZHONGKE OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of the existing radially polarized light and angularly polarized light generating devices are relatively complicated, the cost is too high, and the process of operation and generating light beams is very cumbersome

Method used

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  • Vector space change rotational symmetric polarized light obtaining device
  • Vector space change rotational symmetric polarized light obtaining device
  • Vector space change rotational symmetric polarized light obtaining device

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0026] Such as figure 1 , The polarized light acquisition device of the present invention includes a monochromatic light source 1 , a polarizer 2 , a λ / 4 wave plate 3 , a microstructure device 4 , and a spiral phase plate 5 . Taking the device for generating angularly polarized light and radially polarized light as an example (you only need to change the type of device 4 to generate other types of polarized light), the monochromatic light source 1, such as a laser, emits a collimated beam, which exits through the polarizer 2 for linear polarization. The linearly polarized light passes through the λ / 4 wave plate to emit circularly polarized light. When the circularly polarized light is right-handed circularly polarized light, it passes through the microstructure device 4 and the spiral phase plate in turn, and then emerges as angularly polarized light; when t...

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Abstract

The invention discloses a vector space change rotational symmetric polarized light obtaining device, and belongs to the technical field of optics. The device comprises a single-color light source, a polarizer, a quarter-wave plate, a microstructure device, and a spiral phase plate, wherein the polarizer, the quarter-wave plate, the microstructure device and the spiral phase plate are sequentially disposed on the axis of an emission light beam of the single-color light source. The microstructure device comprises a device body. The device body is at least provided with a light transmission region. The light transmission region is provided with a trench structure. The device is simple in structure, is low in cost, is flexible in application, is easy to debug, and can generate high-quality centrosymmetric vector space polarized light.

Description

technical field [0001] The invention relates to the field of optical technology, in particular to a polarized light acquisition device for acquiring rotational symmetry of vector space variation. Background technique [0002] Polarization is a fundamental property of light. The polarized light whose vector space changes rotationally symmetric is a kind of polarized light with special properties and broad application prospects. Among them, the more common types of light fields are angularly polarized light and radially polarized light. There are two main types of polarized light generation methods with rotational symmetry in the vector space change: one is the intracavity method, that is, adding special optical components directly in the laser cavity to generate polarized light, such as placing a birefringent crystal in the resonant cavity of the laser, etc. Medium, through the mode selection method to generate angularly polarized light; the other is the extracavity method, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/28
CPCG02B27/286
Inventor 田维坚周国尊
Owner HUZHOU ZHONGKE OPTOELECTRONICS TECH CO LTD