Anisotropic Semiconductor Crystals for Terahertz Frequencies

Award Information
Agency:
Department of Defense
Amount:
$749,997.00
Program:
SBIR
Contract:
FA8650-07-C-5306
Solitcitation Year:
2006
Solicitation Number:
2006.1
Branch:
Air Force
Award Year:
2007
Phase:
Phase II
Agency Tracking Number:
F061-110-2767
Solicitation Topic Code:
AF06-110
Small Business Information
EIC LABORATORIES, INC.
111 Downey Street, Norwood, MA, 02062
Hubzone Owned:
N
Woman Owned:
N
Socially and Economically Disadvantaged:
N
Duns:
076603836
Principal Investigator
 Krishna Mandal
 Dir., Solid State Sensors
 (781) 769-9450
 kmandal@eiclabs.com
Business Contact
 David Rauh
Title: President
Phone: (781) 769-9450
Email: drauh@eiclabs.com
Research Institution
N/A
Abstract
Terahertz (THz) technology shows great promise for threat detection and imaging of concealed weapons, explosives, chemical and biological agents, luggage at airport security checkpoints, and medical diagnostics. THz frequencies however have not been fully and successfully utilized because of a lack of compact high power sources and high efficiency detectors. To address these needs, EIC Laboratories proposes to grow large-area, defect free ultrapure nonlinear optical crystals for generating and detecting THz radiation in the 0.3 – 20 THz range (10-600 cm-1). In Phase I, we have investigated various high and narrow bandgap semiconductor crystals for their THz performance as emitters and/or detectors. Among these semiconductors, covering a wide THz spectrum from 100 GHz to 40 THz, we have identified a few for in-detail investigation in the Phase II effort. The Phase II research will concentrate on producing defect-free, high optical quality, large crystals from zone-refined precursor materials using vertical modified Bridgman technique. Extensive growth modeling/simulation and crystal characterization will be used to optimize crystal growth conditions. The performance of these materials as THz sources and sensors will be evaluated. Practical applications of the THz crystals in explosives and non-explosives detection, bio molecules, various amino acids forming proteins and personnel identification by hair and skin analysis will be demonstrated.

* information listed above is at the time of submission.

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