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Conferences > CLEO_Europe > 2009 > JSIV2 > JSIV2_4
  • CLEO/Europe and EQEC 2009 Conference Digest
  • (Optica Publishing Group, 2009),
  • paper JSIV2_4

All-Optical Coherently Controlled Terahertz AC Charge Currents from Excitons in Semiconductors

Christian Sames, Jean-Michel Ménard, Markus Betz, Arthur L. Smirl, and Henry M. van Driel

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Abstract

Quantum interference between single- and two-photon absorption pathways of fundamental (ω) and second-harmonic (2ω) 150fs optical pulses enables the optical injection of ballistic electron and hole currents in bulk semiconductors. In previous experimental studies the kinetic energy of these injected carriers was large compared to the exciton binding energy and thus permitted the electrons and holes to be treated within the independent particle approximation.

© 2009 IEEE

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