Long-to-Very-Long-Wavelength Infrared Band-Pass Filters for Space Infrared Detectors

Award Information
Agency:
Department of Defense
Branch
Missile Defense Agency
Amount:
$99,409.00
Award Year:
2008
Program:
SBIR
Phase:
Phase I
Contract:
HQ0006-08-C-7840
Agency Tracking Number:
B073-001-0011
Solicitation Year:
2007
Solicitation Topic Code:
MDA07-001
Solicitation Number:
2007.3
Small Business Information
LAKE SHORE CRYOTRONICS, INC.
575 McCorkle Blvd., Westerville, OH, 43082
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
051815553
Principal Investigator:
William McGovern
Senior Chemical Engineer
(614) 891-2243
bill.mcgovern@lakeshore.com
Business Contact:
Philip Swinehart
Vice President, Sensor R&D
(614) 891-2243
pswinehart@lakeshore.com
Research Institution:
n/a
Abstract
This Phase I SBIR proposal requests innovative sensor solutions to improve strategic space sensors. One route of improvement is selective band-pass filtering of radiation before it reaches the detector. Such filtering can improve detection by blocking out-of-band interferences and allowing transmission of the desired spectral components. Filtering can improve a cheaper detector with a broader detection profile into a high performance detector. Filtering can also improve signal-to-noise of a detector by eliminating out-of-band radiation from reaching the detector and causing spurious signal or A/D saturation. Comparable band-pass filters in the mid-infrared are typically thick multilayer dielectrics subject to poor adhesion between layers, thermal mismatch stress, or moisture sensitivity which can lead to destructive delamination. The innovative very-long-wavelength-region band-pass filter design proposed here has high transmission, can tolerate cryogenic temperatures, ionizing radiation and vibration making them launch-capable. The 2mm-thin proposed band-pass filter allows insertion into tight spaces. Lake Shore has demonstrated prototype band-pass filters with center bands from 14 – 25 microns in the infrared spectrum. By using innovative fabrication, it will be possible to extend this range down to the long-wavelength-infrared region. New IR detectors, developed in-tandem with Lake Shore band-pass filters can produce a high-performance solution for MDA applications.

* information listed above is at the time of submission.

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