Amplified spontaneous emission at the band edges of Ag-coated Al nanocone array  

作　　者：YE XIANG YONGPING ZHAI JIAZHI YUAN KE REN XUCHAO ZHAO DONGDA WU JUNQIAO LA YI WANG WENXIN WANG 

机构地区：[1]College of Advanced Interdisciplinary Studies,National University of Defense Technology,Changsha 410073,China [2]College of Physics and Optoelectronic Engineering,Harbin Engineering University,Harbin 150001,China [3]Qingdao Innovation and Development Center of Harbin Engineering University,Harbin Engineering University,Qingdao 266500,China

出　　处：《Photonics Research》2023年第12期2202-2209,共8页光子学研究（英文版）

基　　金：National Defense Science and Technology Innovation Fund of the Chinese Academy of Sciences(22-ZZCX-064);National Natural Science Foundation of China(61905051);Natural Science Foundation of Heilongjiang Province(LH2020F027)。

摘　　要：Surface lattice resonances(SLRs)with ultra-narrow linewidth(high quality factor)can enhance light–matter interactions at the nanoscale and modulate the propagating light from the emission wavelength direction to efficiency by photonic band engineering.Therefore,SLRs can serve as an excited candidate to enhance and,more importantly,modulate amplified spontaneous emission(ASE)with more optical parameters.Here,this work presents a system of two-dimensional Ag-coated Al nanocone array(Ag-NCA)packaged with Nile red,and a normal ASE with 15-fold enhancement is observed under external driving light.This enhancement fades away,obviously,in the case of the off-normal condition,as the optical feedback evolves from the band edge steady state to the propagating state.The ASE of this hybrid plasmonic system expands the possibilities of interaction between light and matter and has great promise for applications in nanolasing,super-resolution imaging,and photonic integration circuits.

关 键 词：BAND LASING driving 

分 类 号：O441[理学—电磁学] TB383.1[理学—物理]