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ABSORPTION DIGITAL REFRACTOMETRY

Award Information

Agency:
National Science Foundation
Branch:
N/A
Award ID:
5378
Program Year/Program:
1987 / SBIR
Agency Tracking Number:
5378
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Measurement Concept Corp
2697 International Pkwy Pkwy 2/ste 201 Virginia Beach, VA 23452
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1987
Title: ABSORPTION DIGITAL REFRACTOMETRY
Agency: NSF
Contract: N/A
Award Amount: $40,000.00
 

Abstract:

THIS PROPOSAL DESCRIBES A NEW METHOD FOR DETERMINING THE REFRACTIVE INDEX AND EXTINCTION COEFFICIENT OF OPTICAL MATERIALS. THIS METHOD IS AN OPTO-ELECTRONIC METHOD, IS COMPLETELY AUTOMATED, EXTREMELY FAST AND IS CAPABLE OF OBTAINING ACCURACIES AND RESOLUTIONS COMPARABLE WITH PRISM SPECTROMETERS. THIS MEASUREMENT METHOD IS CALLED ABSORPTIONDIGITAL REFRACTOMETRY. THE MOST ACCURATE METHOD AT PRESENT FOR OBTAINING REFRACTIVE INDICES IS WITH THE DIVIDED CIRCLE PRISM SPECTROMETER. IT IS CAPABLE OF DETERMINING THE REFRACTIVE INDEX TO SIX DECIMAL PLACES WITH AN ACCURACY OF 1X10-6. HOWEVER, THESE INSTRUMENTS ARE EXTREMELY EXPENSIVE, REQUIRE THE FABRICATION OF AN (UNKNOWN) MATERIAL INTO A "PERFECT" EQUILATERAL PRISM, ARE SPECTRALLY RESTRICTED, PRACTICALLY LIMITED TO TRANSPARENT MATERIALS ANDARE NOT READILY ADAPTED TO AUTOMATION. ABSORPTION DIGITAL REFRACTOMETRY OVERCOMES ALL OF THESE LIMITATIONS. THE EQUATIONS FOR DETERMINING THE REFRACTIVE INDEX AND THE EXTINCTION COEFFICIENT ARE DERIVED USING THE STOKES POLARIZATION PARAMETERS AND THE MUELLER MATRIX FORMULATION. IN THE FINAL SECTION THE PROPOSED LABORATORY CONFIGURATION IS DESCRIBED. IF THE CONCEPT OF ABSORPTION DIGITAL REFRACTOMETRY IS VALIDATED IT IS BELIEVED THAT A COMMERCIAL SYSTEM COULD BE BUILT WHICH WOULD FIND NUMEROUS APPLICATIONSIN THE DEVELOPMENT OF OPTICAL MATERIALS.

Principal Investigator:


0

Business Contact:

Dr. Edward Collett
President
Small Business Information at Submission:

Measurement Concepts Inc.
Colts Towne Plaza 41 Hway 34 South Colts Neck, NJ 07722

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