Dynamic tunable LWIR achromatic metalens comprising all-As2Se3 microstructures

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外文摘要：In the field of long-wave infrared[LWIR]thermal imaging,vital for applications such as military surveillance and medical diagnostics,metalenses show immense potential for compact,lightweight,and low-power optical systems.However,to date,the development of LWIR broadband achromatic metalenses with dynamic tunable focus,which are suitable for both coaxial and off-axis applications,remains a large unexplored area.Herein,we have developed an extensive database of broadband achromatic all-As2Se3 microstructure units for the LWIR range.Utilizing this database with the particle swarm optimization[PSO]algorithm,we have designed and demonstrated LWIR broadband achromatic metalenses capable of coaxial and off-axis focusing with three dynamic tunable states.This research may have potential applications for the design of compact,high-performance optical devices,including those with extreme depth-of-field and wide-angle imaging capabilities.

外文关键词：

achromatic metalenslong-wave infrareddynamic tunable focus

作者：

贺志豪、王炳霞、钱志昂、周孔思、沈祥、马云贵

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作者单位：

Laboratory of Infrared Materials and Devices,The Research Institute of Advanced Technologies,Key Laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province,Ningbo University,Ningbo 315211,China

State Key Laboratory of Modern Optical Instrumentation,Centre for Optical and Electromagnetic Research,College of Optical Science and Engineering,International Research Center for Advanced Photonics,Zhejiang University,Hangzhou 310058,China

出版年：

2024

DOI：

10.3788/COL202422.063602

中国光学快报(英文版)

中国光学学会中国科学院上海光学精密机械研究所

中国光学快报(英文版)

CSTPCD

影响因子：1.305

ISSN：1671-7694

年,卷(期)：2024.22(6)