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Tunable Active HEterodyneHEterodyneTerahertz Imaging (TAHETI)

Award Information
Agency: Department of Defense
Branch: Army
Contract: W911NF-21-C-0054
Agency Tracking Number: A2-8765
Amount: $1,150,000.00
Phase: Phase II
Program: STTR
Solicitation Topic Code: A17A-T007
Solicitation Number: 17.A
Solicitation Year: 2017
Award Year: 2021
Award Start Date (Proposal Award Date): 2021-09-28
Award End Date (Contract End Date): 2023-09-27
Small Business Information
958 San Leandro Ave Ste 300
Mountain View, CA 94304-1111
United States
DUNS: 831746628
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Alan Lee
 (310) 650-6276
Business Contact
 Alan Lee
Phone: (310) 650-6276
Research Institution
 Massachusetts Institute of Technology
 Katrina McCarty
77 Massachusetts Avenue, NE18-901
Cambridge, MA 02139-4308
United States

 (617) 715-4296
 Nonprofit College or University

The Tunable Active HEterodyne Terahertz Imager (TAHETI) system will use Terahertz Quantum-Cascade Lasers (QCL) combined with a Schottky diode detector for ultra-high dynamic range FMCW heterodyne imaging. Distributed feedback (DFB) QCLs with multi-milliwatt power levels are engineered to emit at slightly offset frequencies, and are used as local oscillator and illumination for imaging. The QCLs will be down converted to an IF band in a reference and a signal Schottky diode mixer. High-dynamic ranges of>90 dB are estimated for real-time image acquisition.  Arrays of DFBs designed for different frequencies will allow tunability in the THz frequency range. This system will enable nondestructive, non-contact testing of materials that are transparent in the terahertz band, potentially revealing information that is complementary to other imaging modalities

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

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