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

Autor:	Van Duppen, Ben, Tomadin, Andrea, Grigorenko, Alexander N., Polini, Marco
Rok vydání:	2015
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics
Zdroj:	2D Mater. 3, 015011 (2016)
Druh dokumentu:	Working Paper
DOI:	10.1088/2053-1583/3/1/015011
Popis:	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 the 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. Comment: 12 pages, 9 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1512.06841 Zobrazit plný text záznamu View this record from Arxiv