We investigate diffusive propagation of light and consequent random lasing in a medium comprising resonant spherical scatterers. A Monte‐Carlo calculation based on photon propagation via three‐dimensional random walks is employed to obtain the dwell‐times of light in the system. We compare the inter‐scatterer and intra‐scatterer dwell‐times for representative resonant and non‐resonant wavelengths. Our results show that more efficient random lasing, with intense coherent modes, is obtained when the gain is present inside the scatterers. Further, a larger reduction in frequency fluctuations is achieved by the system with intra‐scatterer gain.
Coherent random lasing in diffusive resonant media
THE FOURTH INTERNATIONAL WORKSHOP ON THEORETICAL AND COMPUTATIONAL NANOPHOTONICS: TaCoNa‐Photonics 2011 ; 2011 ; Bad Honnef, (Germany)
AIP Conference Proceedings ; 1398 , 1 ; 103-105
2011-10-03
3 pages
Conference paper
Electronic Resource
English
Coherent random lasing in diffusive resonant media
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