DIGITAL SPECTROSCOPY OF PIEZOELECTRIC CRYSTALLINE MEDIA

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$50,000.00
Award Year:
1987
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
4132
Agency Tracking Number:
4132
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Measurement Concepts Inc. (Currently Measurement Concept Corp)
41 Hwy 34 South - Colts Towne, Colts Neck, NJ, 07722
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr Edward Collet
(201) 780-7576
Business Contact:
() -
Research Institution:
n/a
Abstract
THIS PROPOSAL DESCRIBES THE EXTENSION OF DIGITAL SPECTROMETRY TO THE MEASUREMENT OF THE ANISOTROPIC PERMITTIVITIES OF PIEZOELECTRIC MATERIALS. WE SHOW THAT FRESNEL'S EQUATIONS FOR ANISOTROPIC MEDIA, AS IS THE CASE WITH ISOTROPIC MEDIA, ALSO SIMPLIFY FOR AN INCIDENT ANGLE OF 45 DEG. IN DIGITAL SPECTROMETRY FOR ISOTROPIC MEDIA THE SAMPLE IS FIXED AND THE POLARIZATION STATE OF THE INCIDENT BEAM IS ROTATED FROM A HORIZONTAL TO A VERTICAL POSITION. THIS ACTION LEADS TO A UNIQUE EQUATION FOR THE REFRACTIVE INDEX. UNFORTUNATELY, WHILE THIS CAN BE DONE FOR ANISOTROPIC MEDIA THE RESULT IS A PAIR OF NONLINEAR EQUATIONS WHICH ARE NOT READILY SOLVED. HOWEVER, WE HAVE DISCOVERED THAT IF THE OPTICAL BEAM IS FIXED AND THE SAMPLE "FLIPPED" THROUGH 90 DEG, THEN A PAIR OF UNCOUPLED EQUATIONS FOR THE ANISOTROPIC PERMITTIVITIES CAN BE OBTAINED. THE EXPERIMENTAL CONFIGURATION IS THEN DEVELOPED AND DESCRIBED IN THIS PROPOSAL TO MEASURE THESE PERMITTIVITIES.

* information listed above is at the time of submission.

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