The coherently pumped laser: The simplest system for lasers without inversion
作者： Ning Lu
DOI: 10.1016/0030-4018(89)90466-5
关键词: Optical pumping 、 Superposition principle 、 Gain-switching 、 Atomic physics 、 Laser pumping 、 Optics 、 Population inversion 、 Inversion (meteorology) 、 Laser 、 Physics 、 Lasing threshold
摘要: Abstract We study the operation of a coherently pumped two-level laser, in which atoms are prepared initially coherent superposition upper and lower levels. There is phase locking but no threshold for laser field. The can exhibit “lasing without population inversion” simplest system lasers inversion. A simple physical picture given to explain lasing
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