Continuous zoom lens for generating cylindrical vector light beam and design method thereof

A technology of a zoom lens and a design method, which is applied in the field of micro-nano optics and achieves the effects of high conversion efficiency, high integration and light weight

Active Publication Date: 2021-01-22
WUHAN POST & TELECOMM RES INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Embodiments of the present application provide a continuous zoom lens for generating cylindrical vector beams and a design method thereof, so as to solve the technical problem in the related art that continuous zooming cannot be achieved while generating cylindrical vector beams

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  • Continuous zoom lens for generating cylindrical vector light beam and design method thereof
  • Continuous zoom lens for generating cylindrical vector light beam and design method thereof
  • Continuous zoom lens for generating cylindrical vector light beam and design method thereof

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Embodiment Construction

[0061] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.

[0062] see figure 1 As shown, the present application provides a continuous zoom lens for generating a cylindrical vector beam, which includes a first metasurface 2 and a second metasurface 3 .

[0063] The first metasurface 2 includes several anisotropic nanobrick structural units, all anisotropic nanobrick structural units have diffe...

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Abstract

The invention relates to a continuous zoom lens for generating a cylindrical vector light beam, and a design method thereof. The continuous zoom lens comprises a first meta-structure surface and a second meta-structure surface which are cascaded, the first meta-structure surface comprises a plurality of anisotropic nano-brick structure units, all the anisotropic nano-brick structure units have different size parameters and different orientation angles, and the anisotropic nano-brick structure units with different size parameters have different transmission phases; and the second meta-structuresurface comprises a plurality of isotropic nano-brick structure units, all isotropic nano-brick structure units have different size parameters and the same orientation angle, and the transmission phases of the isotropic nano-brick structure units with different size parameters are different. According to the continuous zoom lens for generating the cylindrical vector light beam, the cylindrical vector light beam with any polarization order can be generated, and continuous zooming of the cylindrical vector light beam can be achieved.

Description

technical field [0001] The present application relates to the field of micro-nano optics technology, in particular to a continuous zoom lens for generating cylindrical vector beams and a design method thereof. Background technique [0002] Cylindrical vector beams are the most special type of vector beams, and their polarization states are axisymmetrically distributed in the cross section. Since there is a polarization singularity at the coordinate origin, its light intensity is distributed in a ring shape. Due to its polarization characteristics, cylindrical vector beams have great application value in the fields of laser cutting, optical information processing, optical storage, particle capture and control, and high-resolution imaging. In the practical application of cylindrical vector beams, a more convenient method is needed to generate cylindrical vector beams, and at the same time focusing cylindrical vector beams at different distances is an important guarantee for i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B3/00G02B1/00G02B26/02G02B27/00G06F30/10
CPCG02B3/00G02B1/002G02B26/02G02B27/0012G06F30/10G06F2111/06
Inventor 郑国兴梁聪玲陶金余少华
Owner WUHAN POST & TELECOMM RES INST CO LTD
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