Giant light deflection via electro-mechanical modulation of liquid crystals

Imamura, Koki; Yoshida, Hiroyuki; Ozaki, Masanori

doi:info:doi/10.1063/1.5083980

このアイテムのアクセス数:38件（2021-03-08 23:48 集計）

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タイトル	Giant light deflection via electro-mechanical modulation of liquid crystals
著者	Imamura, Koki Imamura, Koki
	Yoshida, Hiroyuki Yoshida, Hiroyuki
	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 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.
公開者	AIP Publishing
掲載誌名	Applied Physics Letters
巻	114
号	6
開始ページ	061901
終了ページ	061901
刊行年月	2019-02-11
ISSN	00036951
ISSN	10773118
NCID	AA00543431
DOI (出版社版)	info:doi/10.1063/1.5083980
URL	http://hdl.handle.net/11094/75687
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	Physical Review Letters
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
DCTERMS.issued" scheme="DCTERMS.W3CDTF	2019-02-11
DC.identifier	info:doi/10.1063/1.5083980
DC.identifier" scheme="DCTERMS.URI	http://hdl.handle.net/11094/75687
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.
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_issn	00036951
citation_issn	10773118
citation_doi	info:doi/10.1063/1.5083980
citation_public_url	http://hdl.handle.net/11094/75687

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