Carrier dynamics in self-assembled ErAs nanoislands embedded in GaAs measured by optical-pump terahertz-probe spectroscopy
作者： R. P. Prasankumar , A. Scopatz , D. J. Hilton , A. J. Taylor , R. D. Averitt
DOI: 10.1063/1.1923174
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摘要: We use optical-pump terahertz (THz)-probe spectroscopy to study carrier dynamics in self-assembled ErAs nanoislands embedded GaAs and deposited a superlattice structure. Measurements are performed at several pump fluences on samples with different periods, enabling determination of the time-dependent conductivity. Subpicosecond capture times obtained, indicating potential these devices as time-domain THz detectors performance comparable low-temperature grown superior control material parameters.
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