Optical tuning and switching of photonic defect modes in cholestericliquid crystals

Yoshida, Hiroyuki; Lee, Chee Heng; Miura, Yusuke; Fujii, Akihiko; Ozaki, Masanori

doi:info:doi/10.1063/1.2560805

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タイトル	Optical tuning and switching of photonic defect modes in cholestericliquid crystals
著者	Yoshida, Hiroyuki Yoshida, Hiroyuki
	Lee, Chee Heng Lee, Chee Heng
	Miura, Yusuke Miura, Yusuke
	Fujii, Akihiko Fujii, Akihiko
	Ozaki, Masanori Ozaki, Masanori
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 Hiroyuki Yoshida, Chee Heng Lee, Yusuke Miura, Akihiko Fujii, and Masanori Ozaki, Appl. Phys. Lett. 90, 071107 (2007) and may be found at https://doi.org/10.1063/1.2560805.
抄録	Optical tuning of photonic defect modes in cholesteric liquid crystals is demonstrated based on a contrast in the pitch length. Two-photon laser lithography was performed in a cholesteric helix to leave an unpolymerized region in the center to act as a structural defect. The unpolymerized region was then substituted by an azobenzene dye-doped cholesteric liquid crystal which exhibits a pitch shortening upon ultraviolet exposure. Reversible shifting or on-off switching of the defect mode was realized as a result of selectively inducing a pitch shortening of the cholesteric liquid crystal at the defect and changing the contrast in the pitch length between the bulk and defect. The authors thank Merck KGaA for the photopolymerizable ChLC mixture. This work is partly supported by a Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology of Japan.
公開者	AIP Publishing
掲載誌名	Applied Physics Letters
巻	90
号	7
開始ページ	071107
終了ページ	071107
刊行年月	2007-02-15
ISSN	00036951
ISSN	10773118
NCID	AA00543431
DOI	info:doi/10.1063/1.2560805
URL	http://hdl.handle.net/11094/75660
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.85(15) P.3139-P.3139
DC.title	Optical tuning and switching of photonic defect modes in cholestericliquid crystals
DC.creator	Yoshida, Hiroyuki
	Lee, Chee Heng
	Miura, Yusuke
	Fujii, Akihiko
	Ozaki, Masanori
DC.publisher	AIP Publishing
DC.language" scheme="DCTERMS.RFC1766	英語
DCTERMS.issued" scheme="DCTERMS.W3CDTF	2007-02-15
DC.identifier	info:doi/10.1063/1.2560805
DC.identifier" scheme="DCTERMS.URI	http://hdl.handle.net/11094/75660
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 Hiroyuki Yoshida, Chee Heng Lee, Yusuke Miura, Akihiko Fujii, and Masanori Ozaki, Appl. Phys. Lett. 90, 071107 (2007) and may be found at https://doi.org/10.1063/1.2560805.
DCTERMS.abstract	Optical tuning of photonic defect modes in cholesteric liquid crystals is demonstrated based on a contrast in the pitch length. Two-photon laser lithography was performed in a cholesteric helix to leave an unpolymerized region in the center to act as a structural defect. The unpolymerized region was then substituted by an azobenzene dye-doped cholesteric liquid crystal which exhibits a pitch shortening upon ultraviolet exposure. Reversible shifting or on-off switching of the defect mode was realized as a result of selectively inducing a pitch shortening of the cholesteric liquid crystal at the defect and changing the contrast in the pitch length between the bulk and defect. The authors thank Merck KGaA for the photopolymerizable ChLC mixture. This work is partly supported by a Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology of Japan.
citation_title	Optical tuning and switching of photonic defect modes in cholestericliquid crystals
citation_author	Yoshida, Hiroyuki
	Lee, Chee Heng
	Miura, Yusuke
	Fujii, Akihiko
	Ozaki, Masanori
citation_publisher	AIP Publishing
citation_language	英語
citation_date	2007-02-15
citation_journal_title	Applied Physics Letters
citation_volume	90
citation_issue	7
citation_firstpage	071107
citation_lastpage	071107
citation_issn	00036951
citation_issn	10773118
citation_doi	info:doi/10.1063/1.2560805
citation_public_url	http://hdl.handle.net/11094/75660

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