Impact of higher-order coherences on the carrier dynamics in Landau-quantized graphene

Florian Wendler; Ermin Malic

doi:10.1117/12.2186880

31 August 2015 Impact of higher-order coherences on the carrier dynamics in Landau-quantized graphene

Florian Wendler, Ermin Malic

Proceedings Volume 9585, Terahertz Emitters, Receivers, and Applications VI; 95850D (2015) https://doi.org/10.1117/12.2186880
Event: SPIE Optical Engineering + Applications, 2015, San Diego, California, United States

Abstract

We investigate the carrier dynamics in Landau-quantized graphene within the density matrix formalism. In particular, we focus on the carrier-light interaction addressing the impact of higher-order polarizations beyond the optical selection rules. We find that these terms are in general negligible, however, there are regimes, where they even become crucial for the carrier dynamics. Our calculations show that for short excitation pulses, very small Landau level broadenings, and certain configurations of magnetic field strength, Fermi energy, and excitation energy, higher-order polarizations need to be taken into account.

Citation Download Citation

Florian Wendler and Ermin Malic "Impact of higher-order coherences on the carrier dynamics in Landau-quantized graphene", Proc. SPIE 9585, Terahertz Emitters, Receivers, and Applications VI, 95850D (31 August 2015); https://doi.org/10.1117/12.2186880

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