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  • 2013 Conference on Lasers and Electro-Optics - International Quantum Electronics Conference
  • (Optica Publishing Group, 2013),
  • paper JSIII_1_1

Emission Properties of Random Laser Media with a Bubble Structure

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In recent years, several novel structures of amplifying random media have been reported for controlling the spectrum and efficiency of random laser emission [1–3]. For example, monodisperse scattering particles have shown to allow us to control the emission spectrum [1], and when there is a defect in the distribution of monodisperse particles, light is found to be concentrated and enhanced in the defect region [2]. These two studies have revealed that the laser emission can be controlled by adding some regularity to the random structure. Another variation in the structure is the shape of the scatterers, which has been found to affect the efficiency of random lasing [3]. In this study, we investigate the random laser emission from random media with a “bubble structure” which has non-scattering regions distributed randomly. Although this structure seems to be similar to superdiffusive media [4], the non-scattering regions are not controlled to realize a Lévy flight for light.

© 2013 IEEE

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