Low-threshold and quasi-single-mode random laser within a submicrometer-sized ZnO spherical particle film

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

doi:10.1063/1.4792349


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Low-threshold and quasi-single-mode random laser within a submicrometer-sized ZnO spherical particle film

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Title:	Low-threshold and quasi-single-mode random laser within a submicrometer-sized ZnO spherical particle film
Authors:	Fujiwara, Hideki Browse this author →KAKEN DB
	Niyuki, Ryo Browse this author
	Ishikawa, Yoshie Browse this author
	Koshizaki, Naoto Browse this author
	Tsuji, Takeshi Browse this author
	Sasaki, Keiji Browse this author →KAKEN DB
Keywords:	lasers
Keywords:	optical polymers
Issue Date:	11-Feb-2013
Publisher:	American Institute of Physics
Journal Title:	Applied Physics Letters
Volume:	102
Issue:	6
Start Page:	061110
Publisher DOI:	10.1063/1.4792349
Abstract:	An unique random laser exhibiting quasi-single-mode and low lasing threshold is developed by a homogenized submicrometer-sized zinc oxide particle film dispersed with intentionally introduced polymer particles as point defects. Such unique random lasing is dominantly initiated at the defect sites, although multi-mode peaks with a collapsed broad emission spectrum are observed at the defect-free sites as in the conventional random lasers. Thus our proposed simple structure can possibly provide the controllability of lasing properties even in random structures.
Rights:	Copyright 2013 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Appl. Phys. Lett. 102, 061110 (2013) and may be found at https://dx.doi.org/10.1063/1.4792349
Type:	article
URI:	http://hdl.handle.net/2115/52231
Appears in Collections:	電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 藤原英樹

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