Quasi-single-mode random lasing within a ZnO nanoparticle film

Hideki Fujiwara; Ryo Niyuki; Yoshie Ishikawa; Naoto Koshizaki; Takeshi Tsuji; Keiji Sasaki

doi:10.1117/12.2003372

6 March 2013 Quasi-single-mode random lasing within a ZnO nanoparticle film

Hideki Fujiwara, Ryo Niyuki, Yoshie Ishikawa, Naoto Koshizaki, Takeshi Tsuji, Keiji Sasaki

Proceedings Volume 8599, Solid State Lasers XXII: Technology and Devices; 859912 (2013) https://doi.org/10.1117/12.2003372
Event: SPIE LASE, 2013, San Francisco, California, United States

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.

Citation Download Citation

Hideki Fujiwara, Ryo Niyuki, Yoshie Ishikawa, Naoto Koshizaki, Takeshi Tsuji, and 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); https://doi.org/10.1117/12.2003372

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