Core-antiresonance-based terahertz cavities and applications[Invited]  

作　　者：韩永鹏 梅养军 刘昶 劳力 姚瑶 肖家豪 赵佳宇 彭滟 Yongpeng Han;Yangjun Mei;Chang Liu;Li Lao;Yao Yao;Jiahao Xiao;Jiayu Zhao;Yan Peng(Terahertz Technology Innovation Research Institute,Terahertz Spectrum and Imaging Technology Cooperative Innovation Center,Shanghai Key Laboratory of Modern Optical System,University of Shanghai for Science and Technology,Shanghai 200093,China;Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;Tera Aurora Electro-optics Technology Co.,Ltd.,Shanghai 200093,China;Shanghai Institute of Intelligent Science and Technology,Tongji University,Shanghai 200092,China)

机构地区：[1]Terahertz Technology Innovation Research Institute,Terahertz Spectrum and Imaging Technology Cooperative Innovation Center,Shanghai Key Laboratory of Modern Optical System,University of Shanghai for Science and Technology,Shanghai 200093,China [2]Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China [3]Tera Aurora Electro-optics Technology Co.,Ltd.,Shanghai 200093,China [4]Shanghai Institute of Intelligent Science and Technology,Tongji University,Shanghai 200092,China

出　　处：《Chinese Optics Letters》2023年第11期34-44,共11页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.61988102 and 62335012);the Youth Sci-Tech“Qimingxing”Program of Shanghai(No.22QC1400300);the National Key Research and Development Program of China(No.2022YFA1404004)。

摘　　要：This work presents a brief review of our recent research on an antiresonant mechanism named core antiresonant reflection(CARR),which leads to a broadband terahertz(THz)spectrum output with periodic dips at resonant frequencies after its transmission along a hollow-core tubular structure(e.g.,a paper tube).The CARR theory relies only on parameters of the tube core(e.g.,the inner diameter)rather than the cladding,thus being distinct from existing principles such as the traditional antiresonant reflection inside optical waveguides(ARROWs).We demonstrate that diverse tubular structures,including cylindrical,polyhedral,spiral,meshy,and notched hollow tubes with either transparent or opaque cladding materials,as well as a thick-walled hole,could indeed become CARR-type resonators.Based on this CARR effect,we also perform various applications,such as pressure sensing with paper-folded THz cavities,force/magnetism-driven chiral polarization modulations,and single-pulse measurements of the angular dispersion of THz beams.In future studies,the proposed CARR method promises to support breakthroughs in multiple fields by means of being extended to more kinds of tubular entities for enhancing their interactions with light waves in an antiresonance manner.

关 键 词：ANTIRESONANCE CORE CLADDING tubular structure APPLICATION 

分 类 号：O441.4[理学—电磁学]