Flexible mirrorless laser based on a free-standing film of photopolymerized cholesteric liquid crystal

Matsui, Tatsunosuke; Ozaki, Ryotaro; Funamoto, Kazuhiro; Ozaki, Masanori; Yoshino, Katsumi

doi:info:doi/10.1063/1.1522498

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タイトル	Flexible mirrorless laser based on a free-standing film of photopolymerized cholesteric liquid crystal
著者	Matsui, Tatsunosuke Matsui, Tatsunosuke
	Ozaki, Ryotaro Ozaki, Ryotaro
	Funamoto, Kazuhiro Funamoto, Kazuhiro
	Ozaki, Masanori Ozaki, Masanori
	Yoshino, Katsumi Yoshino, Katsumi
内容	This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Tatsunosuke Matsui, Ryotaro Ozaki, Kazuhiro Funamoto, Masanori Ozaki, and Katsumi Yoshino, Appl. Phys. Lett. 81, 3741 (2002) and may be found at https://doi.org/10.1063/1.1522498.
抄録	Optically pumped mirrorless laser action has been observed in a dye-doped flexible free-standing film of photopolymerized cholesteric liquid crystal (PCLC). In the PCLC film, self-organized helical structure acts as one-dimensional (1D) photonic crystal. At high excitation intensity above the threshold, a laser action is observed at an edge of the 1D photonic band of the PCLC helical structure. This PCLC film laser possesses an excellent mechanical flexibility, and the laser action is also observed in a bent film of PCLC. This implies that the one-dimensional periodic structure for the laser action is maintained even in the deformed film. Using such flexibility of the PCLC film, a focusing effect of laser emission is demonstrated in a circularly deformed film. Moreover, the helical pitch of the PCLC has no temperature dependence in contrast to that of unpolymerized cholesteric liquid crystal. This means that the operation wavelength of laser action is thermally stable, which is the great advantage for the device application.
公開者	American Institute of Physics
掲載誌名	Applied Physics Letters
巻	81
号	20
開始ページ	3741
終了ページ	3743
刊行年月	2002-11-04
ISSN	00036951
ISSN	10773118
NCID	AA00543431
DOI	info:doi/10.1063/1.1522498
URL	http://hdl.handle.net/11094/75832
言語	英語
カテゴリ	学術雑誌論文 Journal Article

著者版フラグ	publisher
NII資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
dcmi資源タイプ	text
DCTERMS.bibliographicCitation	Applied Physics Letters.81(20) P.3741-P.3743
DC.title	Flexible mirrorless laser based on a free-standing film of photopolymerized cholesteric liquid crystal
DC.creator	Matsui, Tatsunosuke
	Ozaki, Ryotaro
	Funamoto, Kazuhiro
	Ozaki, Masanori
	Yoshino, Katsumi
DC.publisher	American Institute of Physics
DC.language" scheme="DCTERMS.RFC1766	英語
DCTERMS.issued" scheme="DCTERMS.W3CDTF	2002-11-04
DC.identifier	info:doi/10.1063/1.1522498
DC.identifier" scheme="DCTERMS.URI	http://hdl.handle.net/11094/75832
DC.description	This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Tatsunosuke Matsui, Ryotaro Ozaki, Kazuhiro Funamoto, Masanori Ozaki, and Katsumi Yoshino, Appl. Phys. Lett. 81, 3741 (2002) and may be found at https://doi.org/10.1063/1.1522498.
DCTERMS.abstract	Optically pumped mirrorless laser action has been observed in a dye-doped flexible free-standing film of photopolymerized cholesteric liquid crystal (PCLC). In the PCLC film, self-organized helical structure acts as one-dimensional (1D) photonic crystal. At high excitation intensity above the threshold, a laser action is observed at an edge of the 1D photonic band of the PCLC helical structure. This PCLC film laser possesses an excellent mechanical flexibility, and the laser action is also observed in a bent film of PCLC. This implies that the one-dimensional periodic structure for the laser action is maintained even in the deformed film. Using such flexibility of the PCLC film, a focusing effect of laser emission is demonstrated in a circularly deformed film. Moreover, the helical pitch of the PCLC has no temperature dependence in contrast to that of unpolymerized cholesteric liquid crystal. This means that the operation wavelength of laser action is thermally stable, which is the great advantage for the device application.
citation_title	Flexible mirrorless laser based on a free-standing film of photopolymerized cholesteric liquid crystal
citation_author	Matsui, Tatsunosuke
	Ozaki, Ryotaro
	Funamoto, Kazuhiro
	Ozaki, Masanori
	Yoshino, Katsumi
citation_publisher	American Institute of Physics
citation_language	英語
citation_date	2002-11-04
citation_journal_title	Applied Physics Letters
citation_volume	81
citation_issue	20
citation_firstpage	3741
citation_lastpage	3743
citation_issn	00036951
citation_issn	10773118
citation_doi	info:doi/10.1063/1.1522498
citation_public_url	http://hdl.handle.net/11094/75832

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