6 March 2013 Quasi-single-mode random lasing within a ZnO nanoparticle film
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Abstract
We experimentally examined our proposed structure for realizing the control of resonant and lasing properties even in random structures, which was composed of size-mono-dispersive scatterers and intentionally introduced defect regions. In the experiments, by intentionally introducing polymer nanoparticles as point defects into a mono-dispersive zinc oxide nanoparticle film, we succeeded that lasing properties at the defect region were drastically modified, comparing with those of typical random lasers; suppression of the number of lasing modes, decrease in the thresholds, and limiting the lasing position at the defect. These results suggest the possibility that we can realize single-mode random lasers with well-controlled modal properties even in random structures.
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Hideki Fujiwara, Hideki Fujiwara, Ryo Niyuki, Ryo Niyuki, Yoshie Ishikawa, Yoshie Ishikawa, Naoto Koshizaki, Naoto Koshizaki, Takeshi Tsuji, Takeshi Tsuji, Keiji Sasaki, Keiji Sasaki, } "Quasi-single-mode random lasing within a ZnO nanoparticle film", Proc. SPIE 8599, Solid State Lasers XXII: Technology and Devices, 859912 (6 March 2013); doi: 10.1117/12.2003372; https://doi.org/10.1117/12.2003372
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