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dc.contributor.authorPan, RPen_US
dc.contributor.authorTsai, TRen_US
dc.contributor.authorChen, CYen_US
dc.contributor.authorPan, CLen_US
dc.date.accessioned2014-12-08T15:41:30Z-
dc.date.available2014-12-08T15:41:30Z-
dc.date.issued2003en_US
dc.identifier.issn0092-0606en_US
dc.identifier.urihttp://hdl.handle.net/11536/28217-
dc.identifier.urihttp://dx.doi.org/10.1023/A:1024485918938en_US
dc.description.abstractThe complex refractive indices of two benchmark nematic liquid crystal, 4'-n-pentyl-4-cyanobiphenyl (5CB) and 4-(trans-4'pentylcyclohexyl)-benzonitrile (PCH5) have been determined in the frequency range from 0.2 to 0.8 THz. The technique of coherent THz time-domain spectroscopy (THz-TDS) was used. We show that the birefringence of 5CB is in the range of 0.15 to 0.21, while that of PCH is from 0.01 to 0.08. Both liquid crystals exhibit relatively small absorption in this frequency range. The large birefringence of 5CB indicates possible applications of liquid-crystal-based devices for modulation and polarization control of electromagnetic radiation in the THz frequency range.en_US
dc.language.isoen_USen_US
dc.subject5CBen_US
dc.subjectabsorptionen_US
dc.subjectbirefringenceen_US
dc.subjectliquid crystalen_US
dc.subjectoptical constantsen_US
dc.subjectPCH5en_US
dc.subjectrefractive indexen_US
dc.subjectTHzen_US
dc.subjecttime-domain spectroscopyen_US
dc.titleOptical constants of two typical liquid crystals 5CB and PCH5 in the THz frequency rangeen_US
dc.typeArticleen_US
dc.identifier.doi10.1023/A:1024485918938en_US
dc.identifier.journalJOURNAL OF BIOLOGICAL PHYSICSen_US
dc.citation.volume29en_US
dc.citation.issue2-3en_US
dc.citation.spage335en_US
dc.citation.epage338en_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:000183703600033-
dc.citation.woscount15-
Appears in Collections:Articles


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