Transmission and reflection from a disordered lasing medium

摘要: A numerical study of the statistics transmission $(t)$ and reflection $(r)$ quasiparticles from a one-dimensional disordered lasing or amplifying medium is presented. The amplification introduced via uniform imaginary part in site energies segment single-band tight-binding model. It shown that $t$ non-self-averaging quantity. crossover length scale above which suppresses transmittance studied as function strength. new regime strong disorder weak amplification. stationary distribution backscattered coefficient to differ qualitatively earlier analytical results obtained within random-phase approximation.