Nonlinear theory of the degenerate quantum-beat laser: Lasing without inversion.
作者： Shi-Yao Zhu
关键词: Laser 、 Diffusion equation 、 Fokker–Planck equation 、 Degenerate energy levels 、 Quantum mechanics 、 Lasing threshold 、 Nonlinear system 、 Physics 、 Quantum electrodynamics 、 Master equation 、 Population inversion
摘要: We present the nonlinear theory for lasing without population inversion in degenerate \ensuremath{\Lambda}-type quantum-beam laser by using density-operator method. The master equation quantum-beat is derived, from which of motion mean photon number obtained. conditions are discussed, same linear and theories. corresponding Fokker-Planck obtained, possibility diffusion coefficient reduction discussed.
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