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Theory of THz emission from optically excited semiconductors in crossed electric and magnetic fields

Theory of THz emission from optically excited semiconductors in crossed electric and magnetic fields

Authors :
Ladislaus Alexander Bányai
Hartmut Haug
G. Meinert
Paul Gartner
Source :
Physical Review B. 62:5003-5009
Publication Year :
2000
Publisher :
American Physical Society (APS), 2000.

Abstract

The coherent transients generated by femtosecond interband photoexcitation of a semiconductor in crossed electric and magnetic fields are calculated. The scattering with LO phonons is considered and the complex interplay between excitation and dephasing is analyzed. While below the LO-phonon threshold the signal is not effectively damped, above the threshold damping takes place on a picosecond time scale, in qualitative agreement with corresponding experiments.

Details

ISSN :
10953795 and 01631829
Volume :
62
Database :
OpenAIRE
Journal :
Physical Review B
Accession number :
edsair.doi...........53194886ed789b68a6fac21ba641dc35
Full Text :
https://doi.org/10.1103/physrevb.62.5003