Polarization-robust mid-infrared carpet cloak with minimized lateral shift

查看全文 作　　者：YAO [1]HUANG;JINGJING [2]ZHANG;JINHUI [3]ZHOU;BO [1]QIANG;ZHENGJI [4]XU;LIN [1]LIU;JIFANG [5]TAO;NICOLAS [1]KOSSOWSKI;QIJIE [1,6]WANG;YU [1]LUO

机构地区：[1]School of Electrical and Electronic Engineering,Nanyang Technological University,Singapore 639798,Singapore;[2]State Key Laboratory of Millimeter Waves,Southeast University,Nanjing 210096,China;[3]Electrical Engineering,Kulicke&Soffa Pte.Ltd.,Singapore 554369,Singapore;[4]School of Microelectronics Science and Technology,Sun Yat-sen University,Zhuhai 519082,China;[5]School of Information and Engineering,Shandong University,Qingdao 266237,China;[6]School of Physical and Mathematical Sciences,Nanyang Technological University,Singapore 637371,Singapore

出　　处：《Photonics Research》索引2021年第9卷第6期,共6页

基　　金：Ministry of Education-Singapore(MOE 2018-T2-2-189(S),MOE2018-T2-1-176);National Research Foundation Singapore(NRF-CRP18-2017-02,NRFCRP22-2019-0006);Agency for Science,Technology and Research(A18A7b0058,A20E5c0095);National Natural Science Foundation of China(61871127). 摘　　要：With the advent and rapid development of the transformation optics and metamaterials,invisibility cloaks have captivated much attention in recent years.While most cloaking schemes suffer from limited bandwidth,the carpet cloak,which can hide an object on a reflecting plane,can operate over a broadband frequency range.However,the carpet cloaks experimentally realized thus far still have several limitations.For example,the quasi-conformal mapping carpet cloak leads to a lateral shift of the reflected light ray,while the birefringent carpet cloak only works for a specific polarization.In this work,we propose a conformal transformation scheme to tackle these two problems simultaneously.As an example,we design a mid-infrared carpet cloak in a silicon platform and demonstrate its polarization-insensitive property as well as the minimized lateral shift over a broad frequency band from 24 to 28.3 THz. 关键词：POLARIZATION CONFORMAL POLARIZATION

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Polarization-robust mid-infrared carpet cloak with minimized lateral shift

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