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Conferences > CLEO_QELS > 2015 > FM3B > FM3B.7

Quantum Interference Control of Photocurrents in Topological Insulator Films

D. A. Bas, K. Vargas-Valez, S. Babakiray, T. A. Johnson, D. Ledereman, T. D. Stanescu, and A. D. Bristow

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Abstract

Charge currents in thin films of Bi2Se3 are controlled using a two-color scheme that exploits quantum interference of single- and two-photon absorption pathways. Injection and shift currents are observed and linked to surface state excitations.

© 2015 Optical Society of America

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