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dc.contributor.authorPan, Ci-Lingen_US
dc.contributor.authorPan, Ru-Pinen_US
dc.date.accessioned2014-12-08T15:06:55Z-
dc.date.available2014-12-08T15:06:55Z-
dc.date.issued2007en_US
dc.identifier.isbn978-0-8194-6600-6en_US
dc.identifier.issn0277-786Xen_US
dc.identifier.urihttp://hdl.handle.net/11536/5412-
dc.identifier.urihttp://dx.doi.org/10.1117/12.717074en_US
dc.description.abstractIn this work, we report recent progress in liquid-crystal-based electrically tunable THz optical devices. Tunable phase shift up to 360 degrees at I THz is demonstrated using electrically controlled birefringence in a vertically aligned nematic liquid crystal (E7) cell, 1.83 nun in thickness. The driving voltage and corresponding field required for a phase shift of 360 degrees at 1 THz are 100 V and 90.5 V/cm, respectively. A sandwiched NLC cell about 2 mm in total thickness is used to increase the interaction length while minimizing Fresnel losses at the interfaces. A phase shift of 367 degrees is demonstrated at 1.05 THz, significantly improving the dynamic response of the device.en_US
dc.language.isoen_USen_US
dc.subjectTHzen_US
dc.subjectliquid-crystal devicesen_US
dc.subjectfar infrareden_US
dc.subjectphase shiftersen_US
dc.titleLiquid-crystal-based electrically tunable THz optical devices - art. no. 648709en_US
dc.typeArticleen_US
dc.identifier.doi10.1117/12.717074en_US
dc.identifier.journalEmerging Liquid Crystal Technologies IIen_US
dc.citation.volume6487en_US
dc.citation.spage48709en_US
dc.citation.epage48709en_US
dc.contributor.department電子物理學系zh_TW
dc.contributor.department光電工程學系zh_TW
dc.contributor.departmentDepartment of Electrophysicsen_US
dc.contributor.departmentDepartment of Photonicsen_US
dc.identifier.wosnumberWOS:000246378900004-
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