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:https://doi.org/10.1063/1.1522498

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

Matsui, Tatsunosuke; Ozaki, Ryotaro; Funamoto, Kazuhiro et al.

Applied Physics Letters, 2002, 81(20), 3741-3743

Number of Access:396（2025-09-02 10:20 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/75832

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Title	Flexible mirrorless laser based on a free-standing film of photopolymerized cholesteric liquid crystal
Creator	NRID 1000080452225 1000080452225 CreatorName Matsui, Tatsunosuke
	NRID 1000090535361 1000090535361 CreatorName Ozaki, Ryotaro
	CreatorName Funamoto, Kazuhiro
	NRID 1000050204186 1000050204186 ORCID 0000-0002-9556-4225 0000-0002-9556-4225 researchmap permalink read0014092 read0014092 Scopus Author ID 55490143900 55490143900 CreatorName Ozaki, Masanori
	NRID 1000070029205 1000070029205 CreatorName Yoshino, Katsumi
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.
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.
Publisher	American Institute of Physics
Source Title	Applied Physics Letters
Volume (Issue)	81(20)
Page	3741-3743
Date of Issued	2002-11-04
Language	English
Handle URL	https://hdl.handle.net/11094/75832
PISSN	00036951
eISSN	10773118
NCID	AA00543431
Relation.isIdenticalTo	DOI (Publisher Version) https://doi.org/10.1063/1.1522498
Access Rights	open access
oaire:version	Version of Record
Category	学術雑誌論文 Journal Article

Resource Type	journal article
Local Type	Journal Article
DCMI Type	Text
DCTERMS.bibliographicCitation	Applied Physics Letters. 2002, 81(20), p. 3741-3743
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	English
DC.type' scheme='DCTERMS.DCMIType	Text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2002-11-04
DC.identifier	https://doi.org/10.1063/1.1522498
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.
DC.format	75832
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	English
citation_date	2002-11-04
citation_journal_title	Applied Physics Letters
citation_volume	81
citation_issue	20
citation_firstpage	3741
citation_lastpage	3743
citation_doi	https://doi.org/10.1063/1.1522498
citation_public_url	https://hdl.handle.net/11094/75832

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

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