Metasurface unit, phase-adjustable metasurface with metasurface unit and optical system

A metasurface and phase technology, applied in the field of metasurface, can solve the problem that the metasurface cannot be applied and needs to actively adjust the phase, etc., to achieve the effect of the phase

Pending Publication Date: 2022-04-22
SHENZHEN METALENX TECH CO LTD
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Problems solved by technology

[0005] In order to solve the technical problem that the existing metasurface cannot actively adjust the phase according to the application r

Method used

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  • Metasurface unit, phase-adjustable metasurface with metasurface unit and optical system
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  • Metasurface unit, phase-adjustable metasurface with metasurface unit and optical system

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Embodiment Construction

[0071] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be A mechanical connection can also be an electrical connection: it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present application in specific situations.

[0072] It should be understood that in the description of the present application, terms such as "fir...

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Abstract

The invention provides a metasurface unit, a phase-adjustable metasurface with the metasurface unit and an optical system, and belongs to the technical field of metasurfaces. The metasurface unit provided by the embodiment of the invention comprises an electrode layer, an electric actuating layer and a nano structure, wherein the nano structure is a sub-wavelength structure; the electrode layers are arranged at the two ends of the electric actuating layer; the nano structure is arranged on one side, far away from the electric actuating layer, of the electrode layer; the nano structure is arranged on one side, far away from the electric actuating layer, of the electrode layer; and the electric actuating layer moves along the height axis direction of the nanostructure under the action of an electric field provided by the electrode layer. According to the metasurface unit, the phase-adjustable metasurface with the metasurface unit and the optical system provided by the embodiment of the invention, large-range and accurate phase adjustment of the phase-adjustable metasurface is realized through the electric actuating layer.

Description

technical field [0001] The present application relates to the technical field of metasurfaces, in particular, to a metasurface unit, a phase-tunable metasurface having the same, and an optical system. Background technique [0002] A metasurface is a planar structure with subwavelength nanostructures. A subwavelength structure refers to a structure whose characteristic size is close to or smaller than the working wavelength. [0003] In the related art, the shape, size and arrangement of the nanostructures are designed according to the wavelength band of the incident radiation, so that the metasurface can realize the modulation of the incident radiation. The nanostructure of the metasurface is predesigned according to the incident radiation band to be modulated, and usually the substrate of the metasurface is a planar structure, so the phase of the metasurface is also predesigned. [0004] Therefore, the phase of the metasurface in the related art is fixed and cannot be act...

Claims

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Application Information

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IPC IPC(8): G02B1/00G02F1/01
CPCG02B1/002G02F1/0102G02F1/0136
Inventor 郝成龙谭凤泽朱健
Owner SHENZHEN METALENX TECH CO LTD
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