Hot-electron far-infrared intrasubband absorption and emission in quantum wells

E. Towe; L. E. Vorobjev; S. N. Danilov; Yu V. Kochegarov; D. A. Firsov; D. V. Donetsky

doi:10.1063/1.124637

Hot-electron far-infrared intrasubband absorption and emission in quantum wells

E. Towe
, L. E. Vorobjev
, S. N. Danilov
, Yu V. Kochegarov
, D. A. Firsov
, D. V. Donetsky

Electrical Engineering

University of Virginia
Peter the Great St. Petersburg Polytechnic University

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

This letter reports the experimental study of hot-electron absorption and emission of far-infrared radiation in GaAs/(Al,Ga)As quantum-well structures. The emission and absorption processes discussed here are associated with intrasubband transitions; these processes are assisted by nonequilibrium optical phonons, and by scattering at rough interfaces and at impurity sites. We show how the far-infrared emission spectra of the hot-electron gas can be used to extract the electron temperature T_e.

Original language	English
Pages (from-to)	2930-2932
Number of pages	3
Journal	Applied Physics Letters
Volume	75
Issue number	19
DOIs	https://doi.org/10.1063/1.124637
State	Published - Nov 8 1999

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10.1063/1.124637

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abstract = "This letter reports the experimental study of hot-electron absorption and emission of far-infrared radiation in GaAs/(Al,Ga)As quantum-well structures. The emission and absorption processes discussed here are associated with intrasubband transitions; these processes are assisted by nonequilibrium optical phonons, and by scattering at rough interfaces and at impurity sites. We show how the far-infrared emission spectra of the hot-electron gas can be used to extract the electron temperature Te.",

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AU - Towe, E.

AU - Vorobjev, L. E.

AU - Danilov, S. N.

AU - Kochegarov, Yu V.

AU - Firsov, D. A.

AU - Donetsky, D. V.

PY - 1999/11/8

Y1 - 1999/11/8

N2 - This letter reports the experimental study of hot-electron absorption and emission of far-infrared radiation in GaAs/(Al,Ga)As quantum-well structures. The emission and absorption processes discussed here are associated with intrasubband transitions; these processes are assisted by nonequilibrium optical phonons, and by scattering at rough interfaces and at impurity sites. We show how the far-infrared emission spectra of the hot-electron gas can be used to extract the electron temperature Te.

AB - This letter reports the experimental study of hot-electron absorption and emission of far-infrared radiation in GaAs/(Al,Ga)As quantum-well structures. The emission and absorption processes discussed here are associated with intrasubband transitions; these processes are assisted by nonequilibrium optical phonons, and by scattering at rough interfaces and at impurity sites. We show how the far-infrared emission spectra of the hot-electron gas can be used to extract the electron temperature Te.

UR - https://www.scopus.com/pages/publications/0013467785

U2 - 10.1063/1.124637

DO - 10.1063/1.124637

M3 - Article

AN - SCOPUS:0013467785

SN - 0003-6951

VL - 75

SP - 2930

EP - 2932

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 19

ER -

Hot-electron far-infrared intrasubband absorption and emission in quantum wells

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