Narrowband Perfect Absorber for Infrared Sensing

Award Information
Agency: Department of Defense
Branch: Army
Contract: W911SR-13-C-0010
Agency Tracking Number: A12A-023-0270
Amount: $99,973.00
Phase: Phase I
Program: STTR
Awards Year: 2013
Solitcitation Year: 2012
Solitcitation Topic Code: A12a-T023
Solitcitation Number: 2012.A
Small Business Information
Srico, Inc.
Duns: 609463302
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Vincent Stenger
 Principal Research Engineer
 (614) 799-0664
Business Contact
 Sri Sriram
Title: President&CEO
Phone: (614) 578-0684
Research Institution
 Boston College
 Susan Hoban
 140 College Road
Chestnut Hill, MA, 02467-3961
 (617) 552-3061
 Nonprofit college or university
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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