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.


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    Title :

    Coherent random lasing in diffusive resonant media


    Contributors:

    Conference:

    THE FOURTH INTERNATIONAL WORKSHOP ON THEORETICAL AND COMPUTATIONAL NANOPHOTONICS: TaCoNa‐Photonics 2011 ; 2011 ; Bad Honnef, (Germany)


    Published in:

    AIP Conference Proceedings ; 1398 , 1 ; 103-105


    Publication date :

    2011-10-03


    Size :

    3 pages





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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