Room temperature electron spin coherence in telecom-wavelength quaternary quantum wells

W. H. Lau; V. Sih; N. P. Stern; R. C. Myers; D. A. Buell; A. C. Gossard; D. D. Awschalom

doi:10.1063/1.2358931

Room temperature electron spin coherence in telecom-wavelength quaternary quantum wells

Mesoscale and Nanoscale Physics 2014-05-05 v1 Materials Science

Authors: W. H. Lau , V. Sih , N. P. Stern , R. C. Myers , D. A. Buell , A. C. Gossard , D. D. Awschalom

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Abstract

Time-resolved Kerr rotation spectroscopy is used to monitor the room temperature electron spin dynamics of optical telecommunication wavelength AlInGaAs multiple quantum wells lattice-matched to InP. We found that electron spin coherence times and effective g-factors vary as a function of aluminum concentration. The measured electron spin coherence times of these multiple quantum wells, with wavelengths ranging from 1.26 microns to 1.53 microns, reach approximately 100 ps at room temperature, and the measured electron effective g-factors are in the range from -2.3 to -1.1.

Keywords

electron spin coherence quantum wells telecom wavelength Kerr rotation spectroscopy g-factor AlInGaAs

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@article{arxiv.cond-mat/0607702,
  title  = {Room temperature electron spin coherence in telecom-wavelength quaternary quantum wells},
  author = {W. H. Lau and V. Sih and N. P. Stern and R. C. Myers and D. A. Buell and A. C. Gossard and D. D. Awschalom},
  journal= {arXiv preprint arXiv:cond-mat/0607702},
  year   = {2014}
}

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4 pages, 4 figures

Room temperature electron spin coherence in telecom-wavelength quaternary quantum wells

Abstract

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