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Updated: Jun 19, 2025

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
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Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

Published on: June 7, 2019

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在光学频率上电调节的时空元表.

Jared Sisler1, Prachi Thureja1, Meir Y Grajower1

  • 1Thomas J. Watson Laboratories of Applied Physics, California Institute of Technology, Pasadena, CA, USA.

Nature nanotechnology
|July 24, 2024
PubMed
概括

这项研究表明,活跃的超表面结合了空间和时间调制来控制光的频率和方向. 这一突破使得新的光学功能,如频率混合和光束转向.

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Fabricating Metamaterials Using the Fiber Drawing Method11:57

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相关概念视频

Standing Waves in a Cavity01:28

Standing Waves in a Cavity

A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
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