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SYSTEMS

Award Information

Agency:
Department of Defense
Branch:
Defense Threat Reduction Agency
Award ID:
4260
Program Year/Program:
1986 / SBIR
Agency Tracking Number:
4260
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Physical Sciences Inc.
20 New England Business Center Andover, MA 01810-
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1986
Title: SYSTEMS
Agency / Branch: DOD / DTRA
Contract: N/A
Award Amount: $89,747.00
 

Abstract:

WE PROPOSE TO DEVELOP A TECHNIQUE FOR RAPID TEMPORAL AND SPATIAL IMAGING OF HIGH POWER LASER BEAMS. THIS METHOD IS WINDOWLESS AND MAY BE EMPLOYED WHERE LASER INTENSITIES EXCEED THE DAMAGE THRESHOLDS FOR CONVENTIONAL CALORIMETRIC METHODS. THE DIAGNOSTIC UTILIZES THE TECHNIQUE OF OPTICAL-INFRARED DOUBLE RESONANCE TO OBSERVE BEAM INTENSITIES. IN THIS TECHNIQUE, THE OUTPUT OF A MWIR CHEMICAL LASER (DF) IS COMBINED WITH THE OUTPUT OF A VISIBLE/UV PROBE LASER TO PRODUCE OR MODULATE THE FLUORESCENCE OF A SIMPLE DIATOMIC MOLECULE SEEDED IN A GAS FLOW THROUGH WHICH THE LASER PROPAGATES. THE INTENSITY OF THE FLUORESCENCE IS LINEARLY PROPORTIONAL TO EACH OF THE LASER INTENSITIES. THE OVERLAP OF THE IR AND PROBE BEAMS DEFINES A CROSS SECTION OF THE IR BEAM, WHICH IS IMAGED ON TO A TWO-DIMENSIONAL INTENSIFIED ARRAY WITH 1 PERCENT SPATIAL RESOLUTION. TEMPORAL RESOLUTION IS DETERMINED BY THE LENGTH OF THE PROBE LASER PULSE (15 NS).AN ATMOSPHERIC PRESSURE LAMINAR FLOW JET WILL SEED THE MOLECULE TO BE EXCITED INTO THE GAS STREAM. PHASE I RESEARCH WILL SELECT FROM MANY POSSIBLE IMAGING MOLECULES AND PERFORM EXCITATION AND QUENCHING MEASUREMENTS TO DETERMINE OPTIMUM CANDIDATES. A RAMAN-SHIFTED PULSED DYE LASER WILL BE USED TO SIMULATE THE PEAK POWER OUTPUT OF A CW DF CHEMICAL LASER. A SECOND DYE LASER WILL BE USED AS THE PROBE LASER. POSSIBLE CANDIDATE MOLECULES INCLUDES THE HALOGENS, INTERHALOGENS, AND NITRIC OXIDE.

Principal Investigator:

William j marinelli
6174759030

Business Contact:

Small Business Information at Submission:

Physical Sciences Inc
Po Box 3100 - Research Pk Andover, MA 01810

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No