机译:Achieving Low Threshold and High Optical Gain Amplified Spontaneous Emission in MAPbI_3 Perovskite Films via Symmetric Waveguide Effect
School of Physics and Electronic Engineering Chongqing Normal University Chongqing 401331, P. R. China;
State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science Shanghai Institute of Optics and Fine Mechanics (SIOM) Chinese Academy of Sciences (CAS) Shanghai 201800, P. R. China;
Adrayn Technology Co., LTD Chongqing 401331, P. R. ChinaState Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science Shanghai Institute of Optics and Fine Mechanics (SIOM) Chinese Academy of Sciences (CAS) Shanghai 201800, P. R. China,Hangzhou Institute for Adva;
amplified spontaneous emission; perovskites; stability; symmetric waveguide;