Low-Threshold Surface Plasmon Lasing using the Band Edge Mode in a Bi-Periodic Groove Array  

作　　者：LI Jia-Qi DONG Zheng-Gao QIU Teng ZHAI Ya 李家奇;董正高;邱腾;翟亚(Department of Physics,Southeast University,Nanjing 211189)

机构地区：[1]Department of Physics,Southeast University,Nanjing 211189

出　　处：《Chinese Physics Letters》2013年第8期185-189,共5页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 11004026,11174051,51271057,51071045 and 11074034;the Program for New Century Excellent Talents in University of Ministry of Education of China(No NCET-11-0096);the Natural Science Fund of Jiangsu Province(No BK2012757);the National Basic Research Program of China under Grant No 2010CB923404.

摘　　要：We study surface plasmon lasing based on periodic and bi-periodic groove arrays etched on a silver substrate.It is interesting to find that the bi-periodic structure can open a clear band gap of surface plasmon polaritons near the first Brillouin zone boundary,and thus it is promising to utilize the band edge modes of surface plasmon polaritons.A low threshold for the surface plasmon lasing effect is demonstrated numerically,owing to the low group velocity of the band edge mode,which provides a feasible way to design surface plasmon lasers.

关 键 词：LASING utilize PERIODIC 

分 类 号：TN2[电子电信—物理电子学]