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Thermoelectrically Cooled MWIR Avalanche Photodiodes on Silicon Substrates

Award Information

Department of Defense
Air Force
Award ID:
Program Year/Program:
2005 / STTR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
EPIR Technologies Inc
590 Territorial Drive, Suite B Bolingbrook, IL 60440-4881
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2005
Title: Thermoelectrically Cooled MWIR Avalanche Photodiodes on Silicon Substrates
Agency / Branch: DOD / USAF
Contract: FA9550-04-C-0143
Award Amount: $99,939.00


Modern Air Force weapon systems need to detect, recognize and track a variety of targets under a wide spectrum of atmospheric conditions. Recent technology developments are paving the way toward imaging optical radars with wavelengths in MWIR range for these applications. The best suited detectors for optical radars are the avalanche photodiodes (APDs) due to their high gain-bandwidth characteristics. Robust silicon-APDs are limited to visible and near infrared region, while InGaAs works well up to wavelengths of about 1.5 microns. Longer wavelength source-detector systems are required to overcome the practical and seasonal conditions of the atmosphere. The semiconductor alloy HgCdTe, with its wavelength tunability over a broad spectral range, high quantum efficiency, low dielectric constant permitting high speed operation, and low noise performance in APDs (due to the resonant enhancement of the ionization coefficient), is an attractive material for MWIR APDs. We propose to use our extensive experience in HgCdTe growth by molecular beam epitaxy (MBE) and device processing to fabricate thermoelectrically cooled MWIR avalanche photodiodes on silicon substrates as single elements and focal plane arrays. The proposing team EPIR Technology- University of Illinois at Chicago integrates the technical strength and extensive knowledge of reputed and accomplished scientists in MBE HgCdTe growth, devices and APD technology.

Principal Investigator:

Silviu Velicu
R&D Director

Business Contact:

Sivalingam Sivananthan
Small Business Information at Submission:

Epir Technologies, Inc.
590 Territorial Drive, Suite B Bolingbrook, IL 60440

EIN/Tax ID: 364196918
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
College of Engineering , 1020 SEO, 851 S. Morgan St.
Chicago, IL 60607
Contact: Eric Gislason
Contact Phone: (312) 996-3423
RI Type: Nonprofit college or university