POLARIMETER FOR APPLICATION TO THE NON-DESTRUCTIVE EVALUATION (NDE) OF MATERIALS

Award Information
Agency:
Department of Energy
Branch
n/a
Amount:
$38,000.00
Award Year:
1983
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
330
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Measurement Concepts Inc.
Colts Towne Plaza, 41 Highway 34 South, Colts Neck, NJ, 07722
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
DR. EDWARD COLLETT
RESEARCH DIRECTOR
() -
Business Contact:
() -
Research Institution:
n/a
Abstract
THIS PROPOSAL DESCRIBES THE DESIGN AND FABRICATION OF A NEW TYPE OF POLARIMETER WHICH WE CALL A SINGLE APERTURE-FOUR CHANNEL OPTICAL POLARIMETER. IT IS DESIGNED TO MEASURE SIMULTANEOUSLY THE FOUR STOKES POLARIZATION PARAMETERS OF AN OPTICAL BEAM AND IS CAPABLE OF MEASURING THE STOKES PARAMETERS OF EITHER A CW OR PULSED OPTICAL BEAM. THE POLARIMETER IS READILY ADAPTED TO ELLIPSOMETRY AND IT IS TO THIS FIELD THAT WE APPLY THE POLARIMETER. WE SHOW THAT IF AN OPTICAL SURFACE (E.G., A DIELECTRIC FILM) IS ILLUMINATED WITH A SINGLE PULSE OF RIGHT OR LEFT CIRCULARLY POLARIZED LIGHT THEN THE ELLIPSOMETRIC PARAMETERS AND, CONSEQUENTLY, THE INDEX OF REFRACTION AND THE THICKNESS OF THE THIN-FILM CAN BE FOUND. THE TECHNICAL PORTION OF THE PROPOSED FIRST DISCUSSES THE CONCEPTUAL FOUNDATIONS FOR THE OPTICAL POLARIMETER FOR IT TO OPERATE AS AN ELLIPSOMETER. THIS IS FOLLOWED BY A DISCUSSION OF THE PROPOSED DESIGN AND ITS OPERATION. IN A FINAL SECTION WE PRESENT A DESCRIPTION OF THE REQUIRED SIGNAL PROCESSING OF THE FOUR CHANNELS.

* information listed above is at the time of submission.

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