Final published version
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Current-induced birefringent absorption and non-reciprocal plasmons in graphene
AU - Van Duppen, Ben
AU - Tomadin, Andrea
AU - Grigorenko, Alexander N.
AU - Polini, Marco
PY - 2016/2/22
Y1 - 2016/2/22
N2 - 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.
AB - 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.
U2 - 10.1088/2053-1583/3/1/015011
DO - 10.1088/2053-1583/3/1/015011
M3 - Journal article
VL - 3
JO - 2D Materials
JF - 2D Materials
SN - 2053-1583
IS - 1
M1 - 015011
ER -