Ultra-broadband spatial light modulation with dual-resonance coupled epsilon-near-zero materials
有双回声的联合 epsilon-near-zero 材料的极端宽带的空间轻调整作者机构：Institute of NanophotonicsJinan UniversityGuangzhou 511443China Institute of Photonics TechnologyJinan UniversityGuangzhou 511443China Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China
出 版 物：《Nano Research》 (纳米研究（英文版）)
年 卷 期：2021年第14卷第8期
页 面：2673-2680页
核心收录：
学科分类：080902[工学-电路与系统] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学]
基 金：financial supports from the National Key Research and Development Program of China(No.2019YFB2203402) the National Natural Science Foundation of China(Nos.92050108,11774383,11774099 and 11874029) Guangdong Science and Technology Program International Cooperation Program(No.2018A050506039) Guangdong Basic and Applied Basic Research Foundation(No.2020B1515020037) Pearl River Talent Plan Program of Guangdong(No.2019QN01X120)
主 题：epsilon-near-zero spatial light modulation plasmonics transparent conductive oxides field effect
摘 要：It has been found that the dielectric constants of transparent conductive oxides(TCOs)can be adjusted in an extremely large range by tuning the carrier *** to the remarkable light confinement property of the epsilon-near-zero(ENZ)effect of TCOs,it has attracted extensive interests of light ***,the operation wavelength bandwidth is usually limited by optical resonance that is applied to enhance the light-TCOs *** this work,a dual-resonance light coupling scheme is proposed to expand the modulation depth-bandwidth product with almost one order-of-magnitude *** a metallic subwavelength grating structure with deep trenches backed by a ground plane,the ENZ mode can be coupled to both magnetic resonance and Fabry-Perot resonance respectively by tuning the *** light modulation can be obtained in a large operation wavelength band covering two resonances by optimizing the dual-resonance *** a reconfigurable efficient broadband modulation is important for robust communication link and possesses remarkable capacity for wavelength division multiplexing.
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