Optimization of Strain-Balanced Heterostructures for High Power 4-5 Micron Quantum Cascade Lasers

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$99,367.00
Award Year:
2004
Program:
STTR
Phase:
Phase I
Contract:
W911NF-04-C-0069
Award Id:
68430
Agency Tracking Number:
A045-012-0025
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
1801 Maple Avenue, Evanston, IL, 60201
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
129503988
Principal Investigator:
Steven Slivken
Technical Director
(847) 491-7208
s_slivken@hotmail.com
Business Contact:
Manijeh Razeghi
President
(847) 491-7208
razeghi@ece.northwestern.edu
Research Institution:
Northwestern University
Charlotte Newman
633 Clark Street, Room 2-502
Evanston, IL, 60208
(847) 491-1967
Nonprofit college or university
Abstract
In order to extract the full potential of quantum cascade laser technology, a heterostructure with a large conduction band offset is required in order to minimize thermal leakage associated with high average power operating conditions. Strain-balanced heterostructures, based on GaInAs/ AlInAs/ InP, exist which are predicted to allow efficient laser operation in the 3-5 micron wavelength region. Due to a large mismatch relative to InP, strict control over layer composition and thickness is required in order to accurately reproduce ideal quantum well heterostructures. In this project, the main effort will be to optimize quantum well shape using strain-balanced heterostructures. In addition, experimental data will be gathered in order to update band structure parameters, which will allow for more accurate laser design. By the end of the project, a laser source with >20 mW continuous wave power in the 3-5 micron wavelength will be demonstrated.

* information listed above is at the time of submission.

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