Giant terahertz polarization rotation in ultrathin films of aligned carbon nanotubes

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dc.citation.firstpage760
dc.citation.issueNumber5
dc.citation.journalTitleOptica
dc.citation.lastpage764
dc.citation.volumeNumber8
dc.contributor.authorBaydin, Andrey
dc.contributor.authorBaydin, Andrey
dc.contributor.authorKomatsu, Natsumi
dc.contributor.authorTay, Fuyang
dc.contributor.authorGhosh, Saunab
dc.contributor.authorMakihara, Takuma
dc.contributor.authorNoe, G. Timothy
dc.contributor.authorKono, Junichiro
dc.contributor.authorKono, Junichiro
dc.contributor.authorKono, Junichiro
dc.contributor.authorKono, Junichiro
dc.date.accessioned2021-06-25T13:35:01Z
dc.date.available2021-06-25T13:35:01Z
dc.date.issued2021
dc.description.abstractFor easy manipulation of polarization states of light for applications in communications, imaging, and information processing, an efficient mechanism is desired for rotating light polarization with a minimum interaction length. Here, we report giant polarization rotations for terahertz (THz) electromagnetic waves in ultrathin (∼45nm), high-density films of aligned carbon nanotubes. We observed polarization rotations of up to ∼20∘ and ∼110∘ for transmitted and reflected THz pulses, respectively. The amount of polarization rotation was a sensitive function of the angle between the incident THz polarization and the nanotube alignment direction, exhibiting a “magic” angle at which the total rotation through transmission and reflection becomes exactly 90°. Our model quantitatively explains these giant rotations as a result of extremely anisotropic optical constants, demonstrating that aligned carbon nanotubes promise ultrathin, broadband, and tunable THz polarization devices.
dc.identifier.citationBaydin, Andrey, Baydin, Andrey, Komatsu, Natsumi, et al.. "Giant terahertz polarization rotation in ultrathin films of aligned carbon nanotubes." <i>Optica,</i> 8, no. 5 (2021) Optical Society of America: 760-764. https://doi.org/10.1364/OPTICA.422826.
dc.identifier.digitaloptica-8-5-760
dc.identifier.doihttps://doi.org/10.1364/OPTICA.422826
dc.identifier.urihttps://hdl.handle.net/1911/110839
dc.language.isoeng
dc.publisherOptical Society of America
dc.rightsPublished under the terms of the OSA Open Access Publishing Agreement
dc.rights.urihttps://www.osapublishing.org/library/license_v1.cfm#VOR-OA
dc.titleGiant terahertz polarization rotation in ultrathin films of aligned carbon nanotubes
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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