CONTROL OF ELECTRON POPULATION BY INTERSUBBAND OPTICAL-EXCITATION IN POTENTIAL-INSERTED DOUBLE-QUANTUM-WELL STRUCTURES

Authors
AKIYAMA H SUGAWARA H KADOYA Y LORKE A TSUJINO S SAKAKI H
Citation
H. Akiyama et al., CONTROL OF ELECTRON POPULATION BY INTERSUBBAND OPTICAL-EXCITATION IN POTENTIAL-INSERTED DOUBLE-QUANTUM-WELL STRUCTURES, Applied physics letters, 65(4), 1994, pp. 424-426
Citations number
14
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
65
Issue
4
Year of publication
1994
Pages
424 - 426
Database
ISI
SICI code
0003-6951(1994)65:4<424:COEPBI>2.0.ZU;2-I
Abstract
A remarkable change in photoluminescence spectra was observed when CO2 laser light was incident to induce an intersubband transition in a no vel asymmetric double quantum well structure where the second subbands of both wells are resonantly coupled, while the ground subbands are n ot. It is found that the observed change originates from the CO2-laser -induced transfer of electrons from one well to the other, demonstrati ng the controllability of electron population by means of infrared lig ht.