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Coherent Few‐Cycle THz Emission from Plasmons in Bulk GaAs
Author(s) -
Kersting R.,
Unterrainer K.,
Strasser G.,
Gornig E.
Publication year - 1997
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(199711)204:1<67::aid-pssb67>3.0.co;2-s
Subject(s) - terahertz radiation , plasma , plasmon , plasma oscillation , physics , materials science , optoelectronics , atomic physics , quantum mechanics
We report on the generation of THz pulses from coherent plasma oscillations in the bulk in GaAs structures. Our experiments give direct insight into two distinctly different emission processes: THz emission from plasma oscillations of hot photogenerated carriers and THz emission from coherent oscillations of a cold extrinsic background plasma.