Terahertz Quantum Cascade Laser Based 3D Imaging

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX10CF71P
Agency Tracking Number: 090113
Amount: $99,490.00
Phase: Phase I
Program: STTR
Awards Year: 2010
Solicitation Year: N/A
Solicitation Topic Code: T7
Solicitation Number: N/A
Small Business Information
2711 Centerville Rd, Wilmington, MA, 19808
DUNS: 831746628
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Alan Lee
 Principal Investigator
 (310) 650-6276
 awmlee@longwavephotonics.com
Business Contact
 Alan Lee
Title: Business Official
Phone: (310) 650-6276
Research Institution
 Massachusetts Institute of Technology
 77 Massachusetts Avenue
Cambridge, MA, 02139-
 (617) 253-2431
 Nonprofit college or university
Abstract
The NASA Constellation program has a need to non-destructively test (NDT) non-metallic materials (foams, Shuttle Tile, Avcoat, etc) for defects such as delaminations and voids. While imaging systems at terahertz frequencies (0.3 to 3 THz) have been demonstrated for 2D imaging of similar materials, they have not yet demonstrate full 3D volumetric imaging. To meet this need, LongWave Photonics proposes to use high-power, low-frequency terahertz quantum cascade lasers (QCLs) developed at MIT, to demonstrate 3D imaging using Laser Triangulation. By using high-power QCL sources, large signal to noise ratios (SNRs) are attainable, resulting in resolution of subtle defects at fast scan speeds. The shorter wavelengths emitted by QCLs, 60 to 250

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

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