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Browse Journals & Magazines > Journal of Applied Physics ...> Volume:89 Issue:3 Help

Quantum-confined Stark effect modulator based on multiple triple-quantum wells

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2 Author(s)
Tobin, Mary S. ; U.S. Army Research Laboratory, 2800 Powder Mill Road, Adelphi, Maryland 20783-1197 ; Bruno, John D.

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.1338517 

A GaAs/AlGaAs triple-quantum-well structure is designed to have its lowest energy excitonic transition located significantly above the GaAs band gap, while maintaining large Stark shifts. We present photocurrent measurements of absorption features found in two different Al0.3Ga0.7As p-i-n diode structures: one contains multiple GaAs coupled-triple-quantum wells, and the other, multiple Al0.6Ga0.94As quantum wells. Both systems are designed to have their absorption edges at the same energy. The photocurrent spectra are compared, and preliminary 810 nm modulator results are presented based on the multiple triple-quantum-well approach.

Published in:
Journal of Applied Physics  (Volume:89 ,  Issue: 3 )

Date of Publication: Feb 2001

Page(s):
1885 - 1889
ISSN :
0021-8979
Digital Object Identifier :
10.1063/1.1338517
Product Type:
Journals & Magazines
Date of Current Version :
18 June 2009
Issue Date :
Feb 2001

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