Cross-Polarized Excitons and Plasmons Aligned Carbon Nanotubes

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dc.contributor.advisorKono, Junichiro
dc.creatorKatsutani, Fumiya
dc.date.accessioned2019-05-17T15:28:41Z
dc.date.available2019-05-17T15:28:41Z
dc.date.created2018-05
dc.date.issued2018-07-17
dc.date.submittedMay 2018
dc.date.updated2019-05-17T15:28:41Z
dc.description.abstractSingle-wall carbon nanotubes (SWCNTs) exhibit strong absorption resonances for parallel -polarized light, arising from one-dimensional excitons with enormous binding energies, promising for a variety of applications in optoelectronics. However, how SWCNTs respond to light polarized perpendicular to the nanotube axis has not been explored experimentally due to the unavailability of suitable samples. In this study, we have observed new types of excitonic and plasmonic resonances for perpendicular-polarized light in aligned SWCNT films. Specifically, first, we observed an interband absorption resonance for perpendicular polarization through so-called cross-polarized excitons in a single-chirality aligned SWCNT film. This direct observation by absorption spectroscopy allowed us to determine the oscillator strength quantitatively. Second, we observed intersubband plasmons for perpendicular polarization when and only when gated and aligned SWCNT films. This observation allowed us to provide insight into the collective dynamic response of interacting electrons in one dimension.
dc.format.mimetypeapplication/pdf
dc.identifier.citationKatsutani, Fumiya. "Cross-Polarized Excitons and Plasmons Aligned Carbon Nanotubes." (2018) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/105780">https://hdl.handle.net/1911/105780</a>.
dc.identifier.urihttps://hdl.handle.net/1911/105780
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.subjectCarbon Nanotube
dc.subjectMacroscopic Alignment
dc.subjectExciton
dc.subjectPlasmon
dc.subjectSpectroscopy
dc.subjectInterband Transition
dc.subjectIntersubband Transition
dc.subjectnear-infrared
dc.subjectElectronic Devices
dc.subjectOptoelectronic Devices
dc.titleCross-Polarized Excitons and Plasmons Aligned Carbon Nanotubes
dc.typeThesis
dc.type.materialText
thesis.degree.departmentElectrical and Computer Engineering
thesis.degree.disciplineEngineering
thesis.degree.grantorRice University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science
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