Abstract
Generation of laserlike emission from strongly scattering media has been observed and studied in a large variety of systems such as dye solutions containing scattering particles, semiconductor powders, and dielectric nanoparticles doped with rare-earth (RE) ions [1]. In the so-called random lasers (RLs) the threshold corresponds to the situation where the gain due to optical amplification compensates losses due to sample boundaries.
© 2009 IEEE
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