Title
Current-induced birefringent absorption and non-reciprocal plasmons in graphene
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Bristol :IOP Publishing ,
Subject
Physics
Source (journal)
2D materials. - Bristol, 2014, currens
Volume/pages
3(2016) :1 , p. 1-12
ISSN
2053-1583
Article Reference
015011
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
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.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/fb7c26/131900.pdf
Handle