A continuous zoom lens for generating cylindrical vector beams and its design method

A zoom lens and cylindrical vector technology, applied in the field of micro-nano optics, achieves the effects of high conversion efficiency, light weight, and high integration

Active Publication Date: 2022-04-29
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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  • A continuous zoom lens for generating cylindrical vector beams and its design method
  • A continuous zoom lens for generating cylindrical vector beams and its design method
  • A continuous zoom lens for generating cylindrical vector beams and its design method

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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 present application relates to a continuous zoom lens for generating cylindrical vector beams and a design method thereof, the continuous zoom lens comprises a cascaded first metasurface and a second metasurface, the first metasurface includes several metasurfaces Anisotropic nano-brick structural units, all anisotropic nano-brick structural units have different size parameters and different orientation angles, and the transmission phases of anisotropic nano-brick structural units with different size parameters are different; the second metasurface includes several The isotropic nano-brick structural units, all the isotropic nano-brick structural units have different size parameters and the same orientation angle, and the transmission phases of the isotropic nano-brick structural units with different size parameters are different. The continuous zoom lens for generating cylindrical vector beams of the present application can not only generate cylindrical vector beams of any polarization order, but also realize continuous zooming of cylindrical vector beams.

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 Patents(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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