作者: Yangjian Cai , Chiyi Chen , Fei Wang
DOI: 10.1016/J.OPTCOM.2007.06.012
关键词: Beam (structure) 、 Laser beam quality 、 Physics 、 Paraxial approximation 、 Geometrical optics 、 Optics 、 Axicon 、 M squared 、 Beam diameter 、 Gaussian beam 、 Physical and Theoretical Chemistry 、 Electrical and Electronic Engineering 、 Atomic and Molecular Physics, and Optics 、 Electronic, Optical and Magnetic Materials
摘要: … a theoretical model named hollow Gaussian beam (HGB) to … numerical aperture dark hollow Gaussian beams in the focal … model for describing a dark hollow beam, we should note …