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

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

2006-07-26

arxiv.org/abs/cond-mat/0607702v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures

Scientific paper

10.1063/1.2358931

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.

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