Extraordinary Transmission through Fractal-Featured Metallic and Superconducting Films at Terahertz Frequency

作     者：LIANG Lan-Ju JIN Biao-Bing ZHANG Qiu-Yi WU Jing-Bo BAO Yong-Jun JIA Tao JIA Xiao-Qing CAO Chun-Hai KANG Lin XU Wei-Wei CHEN Jian WU Pei-Heng 梁兰菊;金飚兵;张秋奕;吴敬波;鲍永军;郏涛;贾小氢;曹春海;康琳;许伟伟;陈健;吴培亨

作者机构：Research Institute of Superconductor Electronics(RISE)School of Electronic Science and EngineeringNanjing UniversityNanjing 210093 State Key Laboratory of Superhard MaterialsJilin UniversityChangchun 130012 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2012年第29卷第11期

页      面：56-59页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：Supported by the National Basic Research Program of China(Nos 2011CBA00107,2011CBA00202) the National Natural Science Foundation of China under Grant Nos 61071009,61027008,11104110 the Specialized Research Fund for Doctoral Program of Higher Education(20090091110040) the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD) 

主　　题：shaped ordinary Fractal 

摘      要：We report on fractal-featured square and ring-shaped apertures with a Sierpinski carpet pattern(SCP)on metallic and superconducting NbN *** extraordinary terahertz(THz)transmission peaks are studied in the transmission spectra using both THz time-domain spectroscopy and numerical *** characteristic transmission peaks are found to be associated with the interaction of surface plasmon polaritons(SPPs)and localized surface plasmons(LSPs)for ring-shaped *** effect of LSPs is less remarkable in the square *** the superconducting NbN film,when the temperature is slightly lower than the critical transition temperature T_(c),the peak magnitude of SPP resonances is most prominent due to the non-monotonic temperature dependence of kinetic *** results provide a new way to design compact and efficient THz devices.