Terahertz Quantum Cascade Laser Based 3D Imaging

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$99,490.00
Award Year:
2010
Program:
STTR
Phase:
Phase I
Contract:
NNX10CF71P
Agency Tracking Number:
090113
Solicitation Year:
n/a
Solicitation Topic Code:
T7
Solicitation Number:
n/a
Small Business Information
LongWave Photonics, LLC
2711 Centerville Rd, Wilmington, MA, 19808
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
831746628
Principal Investigator:
Alan Lee
Principal Investigator
(310) 650-6276
awmlee@longwavephotonics.com
Business Contact:
Alan Lee
Business Official
(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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