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APS » Journals » Phys. Rev. Lett. » Volume 74 » Issue 18
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Phys. Rev. Lett. 74, 3596–3599 (1995)

Phase-Controlled Currents in Semiconductors

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E. Dupont and P. B. Corkum
Steacie Institute for Molecular Sciences, National Research Council, Ottawa, Ontario, Canada K1A 0R6

H. C. Liu, M. Buchanan, and Z. R. Wasilewski
Institute for Microstructural Sciences, National Research Council, Ottawa, Ontario, Canada K1A 0R6

Received 15 September 1994; published in the issue dated 1 May 1995

The direction of emission of photoexcited electrons in semiconductors is controlled by adjusting the relative phase difference between a midinfrared radiation and its second harmonic. This is achieved by using quantum interference of electrons produced with one- and two-photon bound-to-free intersubband transitions in AlGaAs/GaAs quantum well superlattices.

© 1995 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.74.3596
DOI:
10.1103/PhysRevLett.74.3596
PACS:
42.50.Hz, 85.60.Gz
 
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