Chen, Ke and Wang, Wenfang and Wu, Jingda and Schuh, D. and Wegscheider, W. and Korn, T. and Lai, Tianshu (2012) Transmission-grating-photomasked transient spin grating and its application to measurement of electron-spin ambipolar diffusion in (110) GaAs quantum wells. OPTICS EXPRESS, 20 (7). pp. 8192-8198. ISSN 1094-4087,
Full text not available from this repository. (Request a copy)Abstract
A circular dichromatic transient absorption difference spectroscopy of transmission-grating-photomasked transient spin grating is developed and formularized. It is very simple in experimental setup and operation, and has high detection sensitivity. It is applied to measure spin diffusion dynamics and excited electron density dependence of spin ambipolar diffusion coefficient in (110) GaAs quantum wells. It is found that the spin ambipolar diffusion coefficient of (110) and (001) GaAs quantum wells is close to each other, but has an opposite dependence tendency on excited electron density. This spectroscopy is expected to have extensive applicability in the measurement of spin transport. (C) 2012 Optical Society of America
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | OPTICAL NONLINEARITIES; INTRINSIC GAAS; TRANSPORT; SPECTROSCOPY; COHERENCE; DRIFT; DRAG; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 18 May 2020 08:41 |
| Last Modified: | 18 May 2020 08:41 |
| URI: | https://pred.uni-regensburg.de/id/eprint/19036 |
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