TITLE

Electro-optical switching and bistability in coupled quantum wells

AUTHOR(S)
Khurgin, Jacob
PUB. DATE
June 1989
SOURCE
Applied Physics Letters;6/19/1989, Vol. 54 Issue 25, p2589
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A modulation-doped system of asymmetric-coupled quantum wells is shown theoretically to possess a large optical nonlinearity due to the change transfer associated with intersubband transition. The range of parameters leading to optical bistability is detetermined. A novel triple quantum well system is suggested, allowing a few orders of magnitude reduction in switching power density. Novel hybrid optoelectronic devices, incorporating the triple quantum well system into the channel of a modulation-doped field-effect transistor, are proposed with potential applications as optoelectronic switches and detectors.
ACCESSION #
9831656

 

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