Standoff Detection of Landmines Using Acoustic Vibrometry

Award Information
Agency: Department of Defense
Branch: Army
Contract: W909MY-09-C-0028
Agency Tracking Number: A082-097-1074
Amount: $69,952.00
Phase: Phase I
Program: SBIR
Awards Year: 2009
Solicitation Year: 2008
Solicitation Topic Code: A08-097
Solicitation Number: 2008.2
Small Business Information
590 Territorial Drive, Suite B, Bolingbrook, IL, 60440
DUNS: 068568588
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Silviu Velicu
 Director of R&D/Senior Scientist
 (630) 771-0203
Business Contact
 Sivalingam Sivananthan
Title: President
Phone: (630) 771-0201
Research Institution
The real-time detection of buried landmines from a moving and vibrating platform is a challenging problem mainly due to the limited sensitivity of present-day receivers. The technical approach we propose is to develop a highly sensitive, acoustic-laser vibrometer system combined with imaging and ranging capabilities. Vibrometers are optical instruments that can accurately measure velocity, displacement, and phase shift patterns of vibrating structures without contact. When image and range information are also obtained, the instrument provides five signatures to discriminate between landmines and other buried objects. The core element of the system will be a new, high gain, avalanche photodiode (APD) array with low-noise and large bandwidth. HgCdTe is the most promising material candidate for the development of these APDs because it can be bandgap engineered to achieve strong absorption at the wavelength of interest and a large asymmetry between the hole and electron impact ionization coefficients. This leads to high gain-bandwidth with minimal excess noise. We propose to use our extensive experience in HgCdTe growth by molecular beam epitaxy and device processing to fabricate the APDs and integrate them into landmine detection systems.

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

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