Coherent backscattering of light from amplifying random media
We report on coherent backscattering measurements from amplifying random media using optically pumped Ti:sapphire powders. The top of the backscattering cone sharpens with increasing gain, reflecting a change in the relative contributions to the intensity from paths of different lengths. A calculation based on diffusion theory is performed on coherent backscattering from amplifying random media, which is in good agreement with the data.
|Journal||Phys. Rev. Lett.|
Wiersma, D. S, van Albada, M. P, & Lagendijk, A. (1995). Coherent backscattering of light from amplifying random media. Phys.Rev.Lett., 75, 1739–1742.