Narrowband Perfect Absorber for Infrared Sensing

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$99,973.00
Award Year:
2013
Program:
STTR
Phase:
Phase I
Contract:
W911SR-13-C-0010
Award Id:
n/a
Agency Tracking Number:
A12A-023-0270
Solicitation Year:
2012
Solicitation Topic Code:
A12a-T023
Solicitation Number:
2012.A
Small Business Information
2724 SAWBURY BOULEVARD, COLUMBUS, OH, -
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
609463302
Principal Investigator:
Vincent Stenger
Principal Research Engineer
(614) 799-0664
judith@srico.com
Business Contact:
Sri Sriram
President&CEO
(614) 578-0684
sri@srico.com
Research Institution:
Boston College
Susan Hoban
140 College Road
Chestnut Hill, MA, 02467-3961
(617) 552-3061
Nonprofit college or university
Abstract
SRICO proposes to combine metamaterial narrowband absorbers and SRICO-proprietary thin film lithium tantalate (TFLT) pyroelectric thermal detectors to produce ultra low cost, size, weight and power (SWaP) room temperature stand-off chemical sensors. Metamaterial narrowband absorber elements will be integrated into the TFLT pyroelectric detector process to provide conversion of radiation to heat, which is then sensed by the pyroelectric detector. Radiation outside a narrow absorption band is reflected by the metamaterial element. In addition, the metamaterial device can be engineered to reflect radiation that falls outside a narrow field of view or acceptance cone angle to mitigate self-radiance effects. This spectrally and aperture selective absorption suppresses blackbody radiation and enables the sensor to achieve shot limited performance. An array of TFLT metamaterial absorber elements tuned to different wavelengths can be formed on a silicon CMOS circuit to produce a highly compact and high speed room temperature long wave infrared (LWIR) spectrometer for stand-off chemical sensing. Compact, low cost and spectrally resolved stand-off chemical sensors that operate at room temperature will have broad applicability to a large number of important defense, industrial, medical, and environmental applications.

* information listed above is at the time of submission.

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