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Absence of exciton quenching in the presence of strong fields at high frequencies

A. H. Chin, J. Kono, and G. S. Solomon
Phys. Rev. B 65, 121307(R) – Published 12 March 2002
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Abstract

We have studied the response of excitons in a multiple quantum-well structure under the presence of intense midinfrared fields. Peak fields (∼106 V/cm, in the plane of quantum wells) that would cause exciton quenching at low frequencies (up to ∼GHz) are observed to have no significant quenching effect on the exciton resonance when applied at ∼100 THz. We attribute this lack of quenching to the short period of the strong, high-frequency field compared to the exciton response time.

  • Received 7 December 2001

DOI:https://doi.org/10.1103/PhysRevB.65.121307

©2002 American Physical Society

Authors & Affiliations

A. H. Chin*

  • Information Science and Technology Division, Lawrence Livermore National Laboratory, P.O. Box 808, Mail Stop L-174, Livermore, California 94551

J. Kono†

  • Department of Electrical and Computer Engineering, Rice University, Houston, Texas 77005

G. S. Solomon

  • Solid State Laboratories, Stanford University, Stanford, California 94305

  • *Present address: UltraPhotonics, 48611 Warm Springs Blvd., Fremont, California 94539. Electronic address: china@ultraphotonics.com
  • †To whom correspondence should be addressed; URL:http://www.ece.rice.edu/∼kono; Electronic address: kono@rice.edu

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Vol. 65, Iss. 12 — 15 March 2002

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