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Perfect vortex light generator and fabrication method thereof

A vortex light and generator technology, applied in the fields of instrumentation, optics, nonlinear optics, etc., can solve the problems of complex equipment, limited beam quality and efficiency, and high price, so as to solve the problems of complex equipment and limited beam quality. Effect

Active Publication Date: 2019-01-08
南京晶萃光学科技有限公司 +2
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Problems solved by technology

The former is complex and expensive, and the quality and efficiency of the generated beam are limited, while the latter is extremely difficult to prepare and process, and the beam conversion efficiency is low

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  • Perfect vortex light generator and fabrication method thereof
  • Perfect vortex light generator and fabrication method thereof
  • Perfect vortex light generator and fabrication method thereof

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Embodiment Construction

[0041] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0042] In recent years, due to the wide application of vortex light in optical micromanipulation, super-resolution optical microscopic imaging, laser processing, optical communication and quantum information, people have paid more and more attention to the research of vortex light. However, for ordinary vortex light, the spot shape is closely related to the topological charge. The size of the ring-shaped spot usually changes sharply with the increase of the topological charge and increases rapidly, which limits th...

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Abstract

The invention discloses a perfect vortex light generator and a fabrication method thereof. The perfect vortex light generator comprises a first substrate, a second substrate, a first orientation layer, a second orientation layer and a liquid crystal layer, wherein the first substrate and the second substrate are arranged opposite to each other, the liquid crystal layer is arranged between the first orientation layer and the second orientation layer, the first orientation layer and the second orientation layer have the same orientation direction and are provided with control patterns of which molecular director direction is periodically, annularly and gradually distributed, the control patterns are used for controlling the liquid crystal molecule director direction in the liquid crystal layer to be periodically, annularly and gradually distributed, so that incident light irradiating the perfect vortex light generator is converted to perfect vortex light. Compared with a perfect vortex light generator in the prior art, the perfect vortex light generator provided by the invention has the advantages that the beam quality and the device integration are remarkably improved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of perfect vortex light, in particular to a perfect vortex light generator and a preparation method thereof. Background technique [0002] The perfect vortex light has the remarkable feature that the spot size does not change with the topological charge, that is, the vortex light with different topological charges has the same spot intensity distribution, which is very meaningful for the practical application of the vortex light. [0003] The perfect vortex optical devices in the prior art mainly include spatial light modulators and metamaterial devices, but these two methods face many problems. The former is complicated and expensive, and the quality and efficiency of the beam produced are limited, while the latter is extremely difficult to prepare and process, and the beam conversion efficiency is low. Contents of the invention [0004] The invention provides a perfect vortex l...

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Application Information

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IPC IPC(8): G02F1/1337G02F1/1333
CPCG02F1/1333G02F1/1337
Inventor 葛士军胡伟陈鹏袁瑞
Owner 南京晶萃光学科技有限公司
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