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Three Pole Auston Switch Terahertz Ellipsometer

Award Information

Agency:
Department of Defense
Branch:
Army
Award ID:
85038
Program Year/Program:
2008 / STTR
Agency Tracking Number:
A08A-013-0383
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
GMATEK, Inc.
3 Church Circle Suite 266 Annapolis, MD -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2008
Title: Three Pole Auston Switch Terahertz Ellipsometer
Agency / Branch: DOD / ARMY
Contract: W911NF-08-C-0112
Award Amount: $100,000.00
 

Abstract:

A new spectroscopic instrument - a time-domain terahertz ellipsometer (TDTE) - and the associated techniques for characterization of advanced materials in the terahertz (THz) spectral range will be developed. A novel three pole Auston-type switch will serve as the detector which is capable of simultaneously measuring two electric field polarizations. Standard THz time domain spectroscopy requires transmission of the beam through the test sample and will not work for opaque materials. Ellipsometry measurements with the TDTE will overcome this limitation by directly detecting the polarization change of the incident beam after reflection due to the material properties of the target surface. During Phase I, the design, fabrication, and testing of the three pole Auston switch will be implemented. The TDTE system will be designed around the three pole switch. Benchmark measurements will be performed on opaque target materials that had been previously impossible to characterize with standard transmission THz spectroscopy. In Phase II, a compact fiber coupled TDTE will be designed and constructed, suitable for laboratory and commercial environments. Advanced analysis and automation controls will enable the TDTE to perform previously impossible measurements rapidly and with high precision.

Principal Investigator:

R. G. Wright
President
4433063387
glenn@gmatek.com

Business Contact:

Matthew Reiten
Sr. Member of the Technical Staff
4433063387
mreiten@gmatek.com
Small Business Information at Submission:

GMATEK, INC.
3 Church Circle Suite 266 Annapolis, MD 21401

EIN/Tax ID: 260300068
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
JOHNS HOPKINS UNIV.
Dept. of Physics and Astronomy
3400 N. Charles St.
Baltimore, MD 21218 2686
Contact: N. P. Armitage
Contact Phone: (410) 516-0214
RI Type: Nonprofit college or university