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Metasurfaces 2.0: Laser-integrated and with vector field control
APL Photonics ( IF 5.6 ) Pub Date : 2021-08-16 , DOI: 10.1063/5.0057904
Dandan Wen 1, 2 , Kenneth B. Crozier 2, 3, 4
Affiliation  

The past decade has witnessed the rapid development of metasurfaces. In this paper, we outline our thinking on what we regard as two important trends in metasurface research, namely, the continual improvement in the light field modulation capacity of metasurfaces and the integration of metasurfaces with other devices to achieve fully contained optical systems. We first describe one of the fastest growing branches of the former, which is known as metasurface-based vectorial holography. This aims to control the wavefront and the polarization state of a light beam simultaneously. In comparison with single function devices, i.e., those that modulate the wavefront or polarization but not both, metasurface vectorial holography represents a significant improvement in our ability to modulate light fields. We then discuss the integration of metasurfaces with lasers for the goal of direct modulation of the polarization of the output beam or for the generation of beams with tailored orbital angular momenta. Two methods for doing so are discussed, namely, on-facet integration and in-cavity integration. We hope this Perspective will provide readers with new insights and thus help extend applications of metasurface-based optical devices.

中文翻译:

Metasurfaces 2.0:激光集成和矢量场控制

过去十年见证了超表面的快速发展。在本文中,我们概述了我们对超表面研究的两个重要趋势的思考,即超表面光场调制能力的不断提高以及超表面与其他设备的集成以实现完全封闭的光学系统。我们首先描述前者增长最快的分支之一,即基于超表面的矢量全息术。这旨在同时控制光束的波前和偏振状态。与单功能设备相比,即那些调制波前或偏振但不能同时调制两者的设备,超表面矢量全息术代表了我们调制光场能力的显着提高。然后,我们讨论超表面与激光器的集成,以直接调制输出光束的偏振或生成具有定制轨道角动量的光束。讨论了这样做的两种方法,即面内积分和腔内积分。我们希望这个视角能够为读者提供新的见解,从而帮助扩展基于超表面的光学设备的应用。
更新日期:2021-08-31
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