Random lasing and weak localization of light in transparent Nd+3 doped phosphate glass
Jingwen Zhang, Long Xu, Hao Wang +4 more
Random lasing action and weak localization of light were observed in multiple visible wavelengths with highly transparent, Nd+3 doped phosphate glass gain media, with strong energy redistribution between different frequencies under different pumping powers. A tentative model based on photoinduced scattering was proposed and verified with a He-Ne laser beam in probing the lasing zone. The remarkable coherency and intensity changes of the probing laser beam confirmed the local, random scattering behind the photoinduced random lasing and the localization of light.
Applied Physics Letters•Jan 14, 2013•29 citations