公开(公告)号：US20240072515A1

公开(公告)日：2024-02-29

申请号：US17894009

申请日：2022-08-23

申请人： UCHICAGO ARGONNE, LLC ,  NORTHWESTERN UNIVERSITY

发明人： Xuedan Ma ,  Jia-Shiang Chen ,  Mark Hersam ,  Anushka Dasgupta

IPC分类号： H01S5/068 ,  H01S5/024 ,  H01S5/10 ,  H01S5/20

CPC分类号： H01S5/06804 ,  H01S5/02407 ,  H01S5/1067 ,  H01S5/204

摘要： Optical gain media and gain devices are required for lasing devices and high intensity optical systems across a wide range of application. A compact optical gain device that provides near-infrared and infrared lasing at room temperature includes an optical microcavity having a refractive index and a curvilinear outer surface with an angle of curvature such that the optical microcavity supports the propagation of an electromagnetic whispering gallery mode. A plurality of optical gain structures are disposed along the curvilinear outer surface of the optical microcavity, the each of the optical gain structures having an optically active wavelength range over which each of the corresponding optical gain structures provides optical gain to radiation through stimulated emission.