Current-induced birefringent absorption and non-reciprocal plasmons in graphene

Van Duppen, Ben and Tomadin, Andrea and Grigorenko, Alexander N. and Polini, Marco (2016) Current-induced birefringent absorption and non-reciprocal plasmons in graphene. 2D Materials, 3 (1). ISSN 2053-1583

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Abstract

We present extensive calculations of the optical and plasmonic properties of a graphene sheet carrying a dc current. By calculating analytically the density–density 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.

Item Type: Journal Article
Journal or Publication Title: 2D Materials
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/2200/2210
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 129046
Deposited By: ep_importer_pure
Deposited On: 23 Nov 2018 09:14
Refereed?: Yes
Published?: Published
Last Modified: 17 Sep 2019 03:40
URI: https://eprints.lancs.ac.uk/id/eprint/129046

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