Inducing electron spin coherence in GaAs quantum well waveguides: Spin coherence without spin precession

Susanta Sarkar, Phedon Palinginis, Pei Cheng Ku, Connie J. Chang-Hasnain, N. H. Kwong, R. Binder, Hailin Wang

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

We demonstrate the generation and detection of electron spin coherence in a quantum well waveguide without either an external or internal dc magnetic field. In the absence of spin precession, the induced spin coherence is detected through effects of quantum interference in the spectral domain coherent nonlinear optical response. We interpret the experimental results qualitatively using a few-level model with optical selection rules as its basic ingredient.

Original languageEnglish (US)
Article number035343
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume72
Issue number3
DOIs
StatePublished - Jul 15 2005

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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