Near Total Resonant Light Absorption in a Graphene Monolayer at Multiple Tunable Wavelengths with Multilayer Structures
Graphene could be potentially important for a broad range of photonic and optoelectronic applications. For such graphene-based applications it is critical to enhance the absorption of light in graphene monolayers in order to achieve near total absorption. Several structures have been proposed to enh...
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ndltd-LSU-oai-etd.lsu.edu-etd-04132015-1421392015-12-09T03:44:44Z Near Total Resonant Light Absorption in a Graphene Monolayer at Multiple Tunable Wavelengths with Multilayer Structures Zand, Iman Electrical & Computer Engineering Graphene could be potentially important for a broad range of photonic and optoelectronic applications. For such graphene-based applications it is critical to enhance the absorption of light in graphene monolayers in order to achieve near total absorption. Several structures have been proposed to enhance light absorption in graphene at visible and infrared wavelengths such as one-dimensional Fabry-Perot cavity structures, and photonic crystal slabs. Fabry-Perot cavity structures, which employ periodic Bragg mirrors, can lead to near total light absorption on resonance. However, such structures cannot achieve near complete absorption in graphene at multiple closely-spaced tunable wavelengths, which is potentially important for applications requiring multispectral light detection. In this thesis, we consider a one-dimensional system for enhancing the absorption in a graphene monolayer at multiple tunable wavelengths. The graphene monolayer is sandwiched between two aperiodic multilayer structures composed of alternating layers of silicon and silica. The structure is deposited on a silica substrate. We show that such a system can achieve near total resonant light absorption in graphene at multiple tunable wavelengths. Daniels-Race, Theda M. Park, Kindong Veronis, Georgios LSU 2015-12-08 text application/pdf http://etd.lsu.edu/docs/available/etd-04132015-142139/ http://etd.lsu.edu/docs/available/etd-04132015-142139/ en restricted I hereby certify that, if appropriate, I have obtained and attached herein a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to LSU or its agents the non-exclusive license to archive and make accessible, under the conditions specified below and in appropriate University policies, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. |
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Electrical & Computer Engineering Zand, Iman Near Total Resonant Light Absorption in a Graphene Monolayer at Multiple Tunable Wavelengths with Multilayer Structures |
description |
Graphene could be potentially important for a broad range of photonic and optoelectronic applications. For such graphene-based applications it is critical to enhance the absorption of light in graphene monolayers in order to achieve near total absorption. Several structures have been proposed to enhance light absorption in graphene at visible and infrared wavelengths such as one-dimensional Fabry-Perot cavity structures, and photonic crystal slabs. Fabry-Perot cavity structures, which employ periodic Bragg mirrors, can lead to near total light absorption on resonance. However, such structures cannot achieve near complete absorption in graphene at multiple closely-spaced tunable wavelengths, which is potentially important for applications requiring multispectral light detection.
In this thesis, we consider a one-dimensional system for enhancing the absorption in a graphene monolayer at multiple tunable wavelengths. The graphene monolayer is sandwiched between two aperiodic multilayer structures composed of alternating layers of silicon and silica. The structure is deposited on a silica substrate. We show that such a system can achieve near total resonant light absorption in graphene at multiple tunable wavelengths.
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author2 |
Daniels-Race, Theda M. |
author_facet |
Daniels-Race, Theda M. Zand, Iman |
author |
Zand, Iman |
author_sort |
Zand, Iman |
title |
Near Total Resonant Light Absorption in a Graphene Monolayer at Multiple Tunable Wavelengths with Multilayer Structures |
title_short |
Near Total Resonant Light Absorption in a Graphene Monolayer at Multiple Tunable Wavelengths with Multilayer Structures |
title_full |
Near Total Resonant Light Absorption in a Graphene Monolayer at Multiple Tunable Wavelengths with Multilayer Structures |
title_fullStr |
Near Total Resonant Light Absorption in a Graphene Monolayer at Multiple Tunable Wavelengths with Multilayer Structures |
title_full_unstemmed |
Near Total Resonant Light Absorption in a Graphene Monolayer at Multiple Tunable Wavelengths with Multilayer Structures |
title_sort |
near total resonant light absorption in a graphene monolayer at multiple tunable wavelengths with multilayer structures |
publisher |
LSU |
publishDate |
2015 |
url |
http://etd.lsu.edu/docs/available/etd-04132015-142139/ |
work_keys_str_mv |
AT zandiman neartotalresonantlightabsorptioninagraphenemonolayeratmultipletunablewavelengthswithmultilayerstructures |
_version_ |
1718146754886500352 |