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Dual Band Normal Incidence Quantum Well Intersubband Photodetector

Award Information
Agency: Department of Defense
Branch: Missile Defense Agency
Contract: N/A
Agency Tracking Number: 32082
Amount: $62,240.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Solicitation Year: N/A
Award Year: 1996
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
119 Technology Dr.
Bethlehem, PA 18015
United States
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Ken Bacher
 (610) 861-6930
Business Contact
Phone: () -
Research Institution

GaAs-based Quantum Well Intersubband Photodetectors (QWIP's) are very attractive devices for large staring Focal Plane Arrays) FPA's) at mid and long infrared wavelengths. The mature GaAs processing technology allows larger arrays with higher pixel operability and better uniformity to be manufactured at lower cost than competing technologies that can access both the MWIR (3-5 micron) and LWIR (8-12 micron) atmospheric windows. Detection in both wavelength ranges with a single array is also easily obtainable with vertical integration. This proposal aims to develop an improved two color QWIP which can image at normal incidence without the need for a diffractive coupler. In addition to reducing processing complexity and improving pixel to pixel uniformity, this approach has the potential to reduce the dark current in the FDIR detector by enabling the barriers between the wells to be composed of a direct bandgap material rather than an indirect one.

* Information listed above is at the time of submission. *

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