DocumentCode
2255762
Title
Terahertz emission from direct created excitons in quantum wells
Author
HernÁndez-cabrera, A. ; Ramos, A. ; Cruz, H. ; Aceituno, P.
Author_Institution
Dept. de Fisica Fundamental y Exp., Univ. de La Laguna, Spain
fYear
1997
fDate
6-11 Jan 1997
Firstpage
91
Lastpage
94
Abstract
We have studied the dipole electromagnetic radiation emerging from electrically pumped excitons tunneling between asymmetric double quantum wells, taking into account the two-particle nature of the process. Transition between direct and indirect excitons affects the charge oscillation of direct created excitons and therefore the terahertz emission. The frequency of this process is one order of magnitude higher than the photoexcited exciton emission
Keywords
eigenvalues and eigenfunctions; electron-hole recombination; excitons; semiconductor quantum wells; tunnelling; asymmetric double quantum wells; charge oscillation; dipole electromagnetic radiation; direct created excitons; electrically pumped excitons; terahertz emission; tunneling; two-particle nature; Electrodes; Electromagnetic radiation; Electrons; Excitons; Optical pumping; Resonance; Solids; Spatial coherence; Tunneling; Wave functions;
fLanguage
English
Publisher
ieee
Conference_Titel
Frontiers in Electronics, 1997. WOFE '97. Proceedings., 1997 Advanced Workshop on
Conference_Location
Puerto de la Cruz
Print_ISBN
0-7803-4059-0
Type
conf
DOI
10.1109/WOFE.1997.621158
Filename
621158
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