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- Kim, Dai-Sik
- Nano Optics Group
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Dynamic longitudinal-optical phonon decay via transient electron-phonon interactions in low-temperature-grown GaAs
- Author(s)
- Yee, KJ, Lee, D, Liu, X, Dobrowolska, M, Furdyna, JK, Lee, KG, Kim, DS, Lim, YS
- Issued Date
- 2006-03
- Citation
- APPLIED PHYSICS LETTERS, v.88, no.12, pp.121904
- Abstract
- We present results on dynamic decay of coherent longitudinal-optical phonons in a low-temperature-grown GaAs. We show that the observed behavior originates from transient electron-phonon scatterings which reflect the depletion of carriers from the surface via carrier trapping and diffusion processes. The electron longitudinal-optical (LO)-phonon scattering rate of around 8.6x10(-18) ps(-1) cm(3) is obtained from the excitation density dependence of the scattering rate.
- Publisher
- AMER INST PHYSICS
- ISSN
- 0003-6951
- Keyword
- MULTIPLE-QUANTUM WELLS, COHERENT PHONONS, PULSES, BISMUTH
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