Giant light deflection via electro-mechanical modulation of liquid crystals

Imamura, Koki; Yoshida, Hiroyuki; Ozaki, Masanori

doi:https://doi.org/10.1063/1.5083980

アクセス数:165件（2024-04-24 02:49 集計）

固定URL: https://hdl.handle.net/11094/75687

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タイトル	Giant light deflection via electro-mechanical modulation of liquid crystals
著者	著者名 Imamura, Koki
	NRID 1000080550045 1000080550045 researchmap permalink hiroyukiyoshida hiroyukiyoshida Scopus Author ID 55628543086 55628543086 著者名 Yoshida, Hiroyuki
	NRID 1000050204186 1000050204186 ORCID 0000-0002-9556-4225 0000-0002-9556-4225 researchmap permalink read0014092 read0014092 Scopus Author ID 55490143900 55490143900 著者名 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 Koki Imamura, Hiroyuki Yoshida, and Masanori Ozaki, Appl. Phys. Lett. 114, 061901 (2019) and may be found at https://doi.org/10.1063/1.5083980
抄録	Liquid crystals (LCs) are matter with fluidity and anisotropy and have been used in various electro-optic devices for their capabilityto modulate the refractive index by voltage. Here, we show that LCs are capable of electro-mechanically modulating light tocause giant light deflection at low voltages (exceeding 64° at 1.0 V). We use a composite material where polymerized cholestericLC particles that show optical Bragg reflection float in a nematic LC medium. The polymer-particles are elastically coupled withthe host director through their surface molecular anchoring and rotate from a face-on to side-on configuration at the Frederiktransition. Rigid-body rotation of the reflection plane causes light deflection, which is well reproducible and can be modelled theoretically.Our findings demonstrate the capability of LCs as a micro-electrical-mechanical system platform, which are potentiallyuseful for large-area light-controlling applications. This study was supported by a Grant-in-Aid for JSPS Fellows (18J10027), JSPS KAKENHI (17H02766), and JST PRESTO (JPMJPR151D). The authors thank Merck Performance Materials for providing the chiral dopant.
出版者	AIP Publishing
収録物名	Applied Physics Letters
巻(号)	114(6)
ページ	061901-061901
刊行年月	2019-02-11
言語	英語
ハンドルURL	https://hdl.handle.net/11094/75687
PISSN	00036951
eISSN	10773118
NCID	AA00543431
関連情報 (isIdenticalTo)	DOI (出版社版) https://doi.org/10.1063/1.5083980
アクセス権	open access
出版タイプ	Version of Record
カテゴリ	学術雑誌論文 Journal Article

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. 2019, 114(6), p. 061901-061901
DC.title	Giant light deflection via electro-mechanical modulation of liquid crystals
DC.creator	Imamura, Koki
	Yoshida, Hiroyuki
	Ozaki, Masanori
DC.publisher	AIP Publishing
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2019-02-11
DC.identifier	https://doi.org/10.1063/1.5083980
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 Koki Imamura, Hiroyuki Yoshida, and Masanori Ozaki, Appl. Phys. Lett. 114, 061901 (2019) and may be found at https://doi.org/10.1063/1.5083980
DCTERMS.abstract	Liquid crystals (LCs) are matter with fluidity and anisotropy and have been used in various electro-optic devices for their capabilityto modulate the refractive index by voltage. Here, we show that LCs are capable of electro-mechanically modulating light tocause giant light deflection at low voltages (exceeding 64° at 1.0 V). We use a composite material where polymerized cholestericLC particles that show optical Bragg reflection float in a nematic LC medium. The polymer-particles are elastically coupled withthe host director through their surface molecular anchoring and rotate from a face-on to side-on configuration at the Frederiktransition. Rigid-body rotation of the reflection plane causes light deflection, which is well reproducible and can be modelled theoretically.Our findings demonstrate the capability of LCs as a micro-electrical-mechanical system platform, which are potentiallyuseful for large-area light-controlling applications. This study was supported by a Grant-in-Aid for JSPS Fellows (18J10027), JSPS KAKENHI (17H02766), and JST PRESTO (JPMJPR151D). The authors thank Merck Performance Materials for providing the chiral dopant.
DC.format	application/pdf
citation_title	Giant light deflection via electro-mechanical modulation of liquid crystals
citation_author	Imamura, Koki
	Yoshida, Hiroyuki
	Ozaki, Masanori
citation_publisher	AIP Publishing
citation_language	英語
citation_date	2019-02-11
citation_journal_title	Applied Physics Letters
citation_volume	114
citation_issue	6
citation_firstpage	061901
citation_lastpage	061901
citation_doi	https://doi.org/10.1063/1.5083980
citation_public_url	https://hdl.handle.net/11094/75687

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