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Extraordinary characteristics for one-dimensional parity-time-symmetric periodic ring optical waveguide networks

查看全文 作　　者：YAN [1]ZHI;XIANGBO [1,2,3]YANG;JIAYE [2]WU;SHIPING [4]DU;PEICHAO [1]CAO;DONGMEI [2]DENG;CHENGYI TIMON [3]LIU 高影响力作者 机构地区：[1]MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science,College of Biophotonics,South China Normal University;[2]Guangzhou Key Laboratory for Special Fiber Photonic Devices,School of Information and Optoelectronic Science and Engineering,South China Normal University;[3]School of Physical Education and Sports Science,South China Normal University;[4]Department of Data and Computer Science,Sun Yat-sen University高影响力机构 出　　处：《Photonics Research》索引2018年第6卷第6期,共8页高影响力期刊 基　　金：National Natural Science Foundation of China(NSFC)(11674107,11775083,61475049,61771205,61774062);Natural Science Foundation of Guangdong Province(2015A030313374);Scientific Research Foundation of Graduate School of South China Normal University(2015lkxm27,2017lkxm091) 摘　　要：In this paper, we design a one-dimensional(1D) parity-time-symmetric periodic ring optical waveguide network(PTSPROWN) and investigate its extraordinary optical characteristics. It is found that quite different from traditional vacuum/dielectric optical waveguide networks, 1D PTSPROWN cannot produce a photonic ordinary propagation mode, but can generate simultaneously two kinds of photonic nonpropagation modes: attenuation propagation mode and gain propagation mode. It creates neither passband nor stopband and possesses no photonic band structure. This makes 1D PTSPROWN possess richer spontaneous PT-symmetric breaking points and causes interesting extremum spontaneous PT-symmetric breaking points to appear, where electromagnetic waves can create ultrastrong extraordinary transmission, reflection, and localization, and the maximum can arrive at 6.6556 × 10^(12) and is more than 7 orders of magnitude larger than the results reported previously.1D PTSPROWN may possess potential in designing high-efficiency optical energy saver devices, optical amplifiers, optical switches with ultrahigh monochromaticity, and so on. 关 键 词：Extraordinary characteristics for one-dimensional parity-time-symmetric periodic ring optical waveguide networks THz PT APM
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