Minimum reflection channel in amplifying random media
Seng Fatt Liew, Hui W. Cao
Enhancing light transmission through scattering media is of much interest in many fields. Here, numerical simulations are performed to study the impact of gain on the value of reflection of the minimum reflection channel in a random medium. Surprisingly, in some random configurations, the reflection falls when gain is added even through the intensity inside the medium presumably increases once gain is introduced. This unexpected behavior is explained based on a decomposition of quasinormal modes.
arXiv:1508.04792•Physical Review B•Dec 29, 2015•5 citations