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Excitation spectra of terahertz Bloch emission in semiconductor superlattices

Authors :
J. R. Cardenas
Kazuhiko Hirakawa
G. Bastard
Robson Ferreira
Toshiyuki Ihara
Laboratoire Pierre Aigrain (LPA)
Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS)
École normale supérieure - Paris (ENS-PSL)
Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL)
Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)
Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS)
École normale supérieure - Paris (ENS Paris)
Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris)
Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)
Source :
Physical Review B: Condensed Matter and Materials Physics (1998-2015), Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2010, 82, pp.041310(R), Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2010, 82, pp.041310(R)
Publication Year :
2010
Publisher :
HAL CCSD, 2010.

Abstract

We present theoretical and experimental studies of the amplitude of the terahertz (THz) light emitted by biased superlattices excited by fast optical pulses as a function of the pump photon energy. The comparison of the measured transient signal and of its dependence upon the excitation photon energy with a model calculation allows a clear separation between the contributions of the dissociated carriers and bound pairs to the emitted THz field.

Details

Language :
English
ISSN :
10980121 and 1550235X
Database :
OpenAIRE
Journal :
Physical Review B: Condensed Matter and Materials Physics (1998-2015), Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2010, 82, pp.041310(R), Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2010, 82, pp.041310(R)
Accession number :
edsair.doi.dedup.....a2bc8646dd21b641c5110a403ec2c53f