Toward single-mode random lasing within a submicrometre-sized spherical ZnO particle film

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

Toward single-mode random lasing within a submicrometre-sized spherical ZnO particle film

Niyuki, Ryo; Fujiwara, Hideki; Ishikawa, Yoshie et al.

Journal of optics, 2016, 18(3), 035202

Permalink : https://hdl.handle.net/2115/62255

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論文情報

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アクセス権	open access
URI	https://hdl.handle.net/2115/62255
タイトル	Toward single-mode random lasing within a submicrometre-sized spherical ZnO particle film
著者	Niyuki, Ryo ; Fujiwara, Hideki ; Ishikawa, Yoshie ; Koshizaki, Naoto ; Tsuji, Takeshi ; Sasaki, Keiji
著者名 Niyuki, Ryo
e-Rad_Researcher 10374670 著者名 Fujiwara, Hideki
e-Rad_Researcher 20509129 著者名 Ishikawa, Yoshie
e-Rad_Researcher 40344197 著者名 Koshizaki, Naoto
e-Rad_Researcher 50284568 著者名 Tsuji, Takeshi
e-Rad_Researcher 00183822 著者名 Sasaki, Keiji
言語	英語
キーワード	random laser
	zinc oxide
	mode control
発行日	2016-03
出版者	IOP Publishing
収録物名	Journal of optics
巻(号)	18(3)
ページ	035202
抄録	We had recently reported unique random laser action such as quasi-single-mode and low-threshold lasing from a submicrometre-sized spherical ZnO nanoparticle film with polymer particles as defects. The present study demonstrates a novel approach to realize single-mode random lasing by adjusting the sizes of the defect particles. From the dependence of random lasing properties on defect size, we find that the average number of lasing peaks can be modified by the defect size, while other lasing properties such as lasing wavelengths and thresholds remain unchanged. These results suggest that lasing wavelengths and thresholds are determined by the resonant properties of the surrounding scatterers, while the defect size stochastically determines the number of lasing peaks. Therefore, if we optimize the sizes of the defects and scatterers, we can intentionally induce single-mode lasing even in a random structure (Fujiwara et al 2013 Appl. Phys. Lett. 102 061110).
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Creative Commons Attribution 3.0 Unported
PISSN	2040-8978
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1088/2040-8978/18/3/035202