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Title
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Current-induced birefringent absorption and non-reciprocal plasmons in graphene
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Author
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Abstract
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| We present extensive calculations of the optical and plasmonic properties of a graphene sheet carrying a dc current. By calculating analytically the densitydensity response function of current-carrying states at finite temperature, we demonstrate that an applied dc current modifies the Pauli blocking mechanism and that absorption acquires a birefringent character with respect to the angle between the in-plane light polarization and current flow. Employing random phase approximation at finite temperature, we show that graphene plasmons display a degree of non-reciprocity and collimation that can be tuned with the applied current. We discuss the possibility to measure these effects. |
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Language
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English
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Source (journal)
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2D materials. - Bristol, 2014, currens
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Publication
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Bristol
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IOP Publishing
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2016
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ISSN
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2053-1583
[online]
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DOI
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10.1088/2053-1583/3/1/015011
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Volume/pages
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3
:1
(2016)
, p. 1-12
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Article Reference
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015011
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ISI
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000373936300031
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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Full text (open access)
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