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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 18 — Sep. 3, 2007
  • pp: 11756–11762

Gigahertz optical spin transceiver

Patrick Irvin, Petru S. Fodor, and Jeremy Levy  »View Author Affiliations

Optics Express, Vol. 15, Issue 18, pp. 11756-11762 (2007)

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We present a time-resolved optical technique to measure electron spin dynamics with GHz dynamical bandwidth, transform-limited spectral selectivity, and phase-sensitive (lock-in) detection. Use of a continuous-wave (CW) laser and fast optical bridge enables greatly improved signal-to-noise characteristics compared to traditional optical sampling (pump-probe) techniques. We demonstrate the technique with a measurement of GHz-spin precession in n-GaAs. This approach may be applicable to other physical systems where stroboscopic techniques cannot be used because of either noise or spectral limitations.

© 2007 Optical Society of America

OCIS Codes
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(300.6500) Spectroscopy : Spectroscopy, time-resolved

ToC Category:

Original Manuscript: May 18, 2007
Revised Manuscript: August 7, 2007
Manuscript Accepted: August 23, 2007
Published: August 30, 2007

Patrick Irvin, Petru S. Fodor, and Jeremy Levy, "Gigahertz optical spin transceiver," Opt. Express 15, 11756-11762 (2007)

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