The pumping rate dependence of the peak intensity of the individual lasing mode in two-dimensional (2D) active random media is investigated. The results show that these modes have a typical threshold gain behavior and different threshold pumping rates. There exists a certain correspondence between the mode's threshold pumping rate and its lifetime, and the longer the lifetime is, the lower the threshold is.
© 2005 Chinese Optics Letters
(270.3430) Quantum optics : Laser theory
(290.0290) Scattering : Scattering
(290.4210) Scattering : Multiple scattering
(290.5850) Scattering : Scattering, particles
(290.5890) Scattering : Scattering, stimulated
Chun Wang, Jinsong Liu, Kejia Wang, Jiantao Lv, Ting Fan, and Hai Liu, "Threshold gain behavior of lasing modes in two-dimensional active random media," Chin. Opt. Lett. 4, 215-218 (2006)