Tunable resonant graphene plasmons for mid-infrared biosensing
Tunable resonant surface plasmons (SPs) based on graphene nanoribbon are studied to detect nanoscale protein molecules in mid-infrared (mid-IR) region. The two-dimensional nature of the collective oscillations of Dirac quasi-particles result in a strong electric field confinement of graphene plasmon...
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sg-ntu-dr.10356-840682020-03-07T14:00:29Z Tunable resonant graphene plasmons for mid-infrared biosensing Wu, Tingting Wei, Lei School of Electrical and Electronic Engineering Surface Plasmons Biological Sensing and Sensors Tunable resonant surface plasmons (SPs) based on graphene nanoribbon are studied to detect nanoscale protein molecules in mid-infrared (mid-IR) region. The two-dimensional nature of the collective oscillations of Dirac quasi-particles result in a strong electric field confinement of graphene plasmons, and lead to a large light overlap with the nanoscale biomolecules, which plays an essential role in the demonstrated high sensitivity in the detection of the refractive index of the nanometric-scale targeted protein molecule. Furthermore, Fermi level controlled resonant SPs in graphene nanostructure provide a unique capacity to control light in nanoscale to probe the protein chemical vibrations. Tunable resonant spectra selectivity combined with the super ambient condition sensitivity promise the graphene plasmons based device exciting prospects in future nanoscale biosensing. MOE (Min. of Education, S’pore) 2017-07-19T07:05:01Z 2019-12-06T15:37:39Z 2017-07-19T07:05:01Z 2019-12-06T15:37:39Z 2016 Journal Article Wu, T., & Wei, L. (2016). Tunable resonant graphene plasmons for mid-infrared biosensing. Optics Express, 24(23), 26241-26248. 1094-4087 https://hdl.handle.net/10356/84068 http://hdl.handle.net/10220/42945 10.1364/OE.24.026241 en Optics Express © 2016 Optical Society of America (OSA). 8 p. |
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Surface Plasmons Biological Sensing and Sensors |
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Surface Plasmons Biological Sensing and Sensors Wu, Tingting Wei, Lei Tunable resonant graphene plasmons for mid-infrared biosensing |
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Tunable resonant surface plasmons (SPs) based on graphene nanoribbon are studied to detect nanoscale protein molecules in mid-infrared (mid-IR) region. The two-dimensional nature of the collective oscillations of Dirac quasi-particles result in a strong electric field confinement of graphene plasmons, and lead to a large light overlap with the nanoscale biomolecules, which plays an essential role in the demonstrated high sensitivity in the detection of the refractive index of the nanometric-scale targeted protein molecule. Furthermore, Fermi level controlled resonant SPs in graphene nanostructure provide a unique capacity to control light in nanoscale to probe the protein chemical vibrations. Tunable resonant spectra selectivity combined with the super ambient condition sensitivity promise the graphene plasmons based device exciting prospects in future nanoscale biosensing. |
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School of Electrical and Electronic Engineering |
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School of Electrical and Electronic Engineering Wu, Tingting Wei, Lei |
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Article |
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Wu, Tingting Wei, Lei |
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Wu, Tingting |
title |
Tunable resonant graphene plasmons for mid-infrared biosensing |
title_short |
Tunable resonant graphene plasmons for mid-infrared biosensing |
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Tunable resonant graphene plasmons for mid-infrared biosensing |
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Tunable resonant graphene plasmons for mid-infrared biosensing |
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Tunable resonant graphene plasmons for mid-infrared biosensing |
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tunable resonant graphene plasmons for mid-infrared biosensing |
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2017 |
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https://hdl.handle.net/10356/84068 http://hdl.handle.net/10220/42945 |
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