Subthreshold carrier-LO phonon dynamics in semiconductors with intermediate polaron coupling: A purely quantum kinetic relaxation channel

M. Betz; G. Göger; A. Laubereau; P. Gartner; L. Bányai; H. Haug; K. Ortner; C. R. Becker; A. Leitenstorfer

doi:10.1103/PhysRevLett.86.4684

Subthreshold carrier-LO phonon dynamics in semiconductors with intermediate polaron coupling: A purely quantum kinetic relaxation channel

M. Betz, G. Göger, A. Laubereau, P. Gartner, L. Bányai, H. Haug, K. Ortner, C. R. Becker, A. Leitenstorfer

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40 Zitate (Scopus)

Abstract

Quantum kinetics based on the Dyson equation was used to compare the femtosecond transmission spectra of highly polar CdTe to covalent GaAs contrasting semiclassical kinetics. Due to the Frohlich mechanism, the nonequilibrium heavy holes in CdTe show ultrafast energy redistribution. The subthreshold relaxation is important if the polaron self-energy is comparable to the phonon energy and the conservation of free particle energies is not required.

Originalsprache	Englisch
Seiten (von - bis)	4684-4687
Seitenumfang	4
Fachzeitschrift	Physical Review Letters
Jahrgang	86
Ausgabenummer	20
DOIs	https://doi.org/10.1103/PhysRevLett.86.4684
Publikationsstatus	Veröffentlicht - 14 Mai 2001

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abstract = "Quantum kinetics based on the Dyson equation was used to compare the femtosecond transmission spectra of highly polar CdTe to covalent GaAs contrasting semiclassical kinetics. Due to the Frohlich mechanism, the nonequilibrium heavy holes in CdTe show ultrafast energy redistribution. The subthreshold relaxation is important if the polaron self-energy is comparable to the phonon energy and the conservation of free particle energies is not required.",

author = "M. Betz and G. G{\"o}ger and A. Laubereau and P. Gartner and L. B{\'a}nyai and H. Haug and K. Ortner and Becker, {C. R.} and A. Leitenstorfer",

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doi = "10.1103/PhysRevLett.86.4684",

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AU - Betz, M.

AU - Göger, G.

AU - Laubereau, A.

AU - Gartner, P.

AU - Bányai, L.

AU - Haug, H.

AU - Ortner, K.

AU - Becker, C. R.

AU - Leitenstorfer, A.

PY - 2001/5/14

Y1 - 2001/5/14

N2 - Quantum kinetics based on the Dyson equation was used to compare the femtosecond transmission spectra of highly polar CdTe to covalent GaAs contrasting semiclassical kinetics. Due to the Frohlich mechanism, the nonequilibrium heavy holes in CdTe show ultrafast energy redistribution. The subthreshold relaxation is important if the polaron self-energy is comparable to the phonon energy and the conservation of free particle energies is not required.

AB - Quantum kinetics based on the Dyson equation was used to compare the femtosecond transmission spectra of highly polar CdTe to covalent GaAs contrasting semiclassical kinetics. Due to the Frohlich mechanism, the nonequilibrium heavy holes in CdTe show ultrafast energy redistribution. The subthreshold relaxation is important if the polaron self-energy is comparable to the phonon energy and the conservation of free particle energies is not required.

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Subthreshold carrier-LO phonon dynamics in semiconductors with intermediate polaron coupling: A purely quantum kinetic relaxation channel

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