Tunable THz spectrum analyzer with hyperspectral resolution

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外文摘要：We present a tunable terahertz[THz]spectrum analyzer with hyperspectral resolution formed from electrically tunable metamaterial and plasmonic structures.As few as eight encoders based on four detectors are needed to recover 396 spectral bands.The incident spectra in the range of 1-5 THz can be reconstructed with a localization precision of 0.3 GHz and a minimum average mean squared error[MSE]of 6.9 x 10-5.Our proposed analyzers are faster and more portable than those based on frequency combs and power meters,and more accurate than existing Fourier transform techniques,showing promising applications in pathology,biomedical imaging,and many other areas.

外文关键词：

tunable metamaterialplasmonicsspectrum analyzer

作者：

何欣、姚铭家、钱城薇、孟雷欣、刘小威、唐文豪、沈小明、Paul Beckett、肖铎、刘旭、殷锐

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作者单位：

School of Information and Electrical Engineering,Hangzhou City University,Hangzhou 310015,China

Research Center for Humanoid Sensing,Zhejiang Lab,Hangzhou 311121,China

State Key Laboratory of Modern Optical Instrumentation,College of Optical Science and Engineering,Zhejiang University,Hangzhou 310 027,China

Research Center for Intelligent Chips and Devices,Zhejiang Lab,Hangzhou 311121,China

STEM College,RMIT University,Melbourne,VIC 3000,Australia

State Key Laboratory of Modern Optical Instrumentation,College of Optical Science and Engineering,Zhejiang University,Hangzhou 310027,China

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出版年：

2024

DOI：

10.3788/COL202422.073601

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(7)