Uncooled, Long-Life Wavefront/Tracking Sensor

Award Information
Agency:
Department of Defense
Branch
Missile Defense Agency
Amount:
$100,000.00
Award Year:
2005
Program:
SBIR
Phase:
Phase I
Contract:
FA9453-05-M-0066
Agency Tracking Number:
044-0096
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
VOXTEL, INC.
12725 SW Millikan Way, Suite 300, Beaverton, OR, 97005
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
124348652
Principal Investigator:
Andrew Huntington
Senior Scientist
(503) 906-7906
georgew@voxtel-inc.com
Business Contact:
George Williams
President
(503) 906-7906
georgew@voxtel-inc.com
Research Institution:
n/a
Abstract
The feasibility of using AlGaInAs avalanche photodiodes (APDs) operated in linear mode as high-frame- rate solid state wavefront and tracking sensor elements capable of detecting single photons will be established. The small contrast between electron and hole ionization coefficients in common III-V compound semiconductors like AlGaInAs would normally prohibit their use in photon-counting APDs owing to excess multiplication noise, but an imaginative new application of the impact-ionization engineering (I2E) concept will be used to overcome the limitations of the material. Lower noise will be realized with novel field control and bandgap engineering methods, which achieve greater spatial localization of the impact ionization events resulting in selective electron-initiated ionization and greater correlation between ionization events. Initial simulations predict better than 50% detection efficiency at 1064 nm & 1550 nm, better than 500 MHz bandwidth, and room-temperature single-photon sensitivity when operated in conjunction with Voxtel's low-noise readout integrated circuit (ROIC). The technique is solid state, has demonstrated reliability, has low dark current at room temperatures, and is supported by the tremendous III-V materials infrastructure developed for telecommunications. It therefore offers significant advantages over hybrid, electron-bombarded image tube sensor approaches.

* information listed above is at the time of submission.

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