ACOUSTO-OPTIC TUNABLE ULTRAVIOLET SNESOR

Award Information
Agency:
Department of Defense
Branch
Missile Defense Agency
Amount:
$504,000.00
Award Year:
1990
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
10144
Agency Tracking Number:
10144
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Po Box 1058 - 50 Nye Rd, Glastonbury, CT, 06033
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr Salvador M Fernandez
(203) 659-0333
Business Contact:
() -
Research Institute:
n/a
Abstract
THE EFFECTIVENESS OF KINETIC ENERGY SPACE-BASED INTERCEPTOR MAY BE CONSIDERABLY ENHANCED BY ON-BOARD UV SENSORS CAPABLE OF DETECTING A POTENTIAL TARGET'S UV SIGNATURE. SUCH UV SENSORS MAY PLAY A CRITICAL ROLE IN TARGET IDENTIFICATION, TRACKING, SEEKING AND DISCRIMINATION AND MAY PROVE INSTRUMENTAL FOR EARLY WARNING OF ATTACK AND KILL DETERMINATION. SPACE-BASED APPLICATIONS, IN PARTICULAR, HAVE CREATED AN URGENT NEED FOR MINIATURE TUNABLE IMAGING UV SENSORS. IN THIS INVESTIGATION, ACOUSTO-OPTIC TECHNIQUES ARE BEING USED TO DEVELOP A SMALL SIZE, LOW MASS ACOUSTO-OPTIC TUNABLE UV FILTER (AOTF) WITH HIGH SPECTRAL RESOLUTION, RAPID WAVELENGTH SCANNING CAPABILITY ASWELL AS RANDOM ACCESS WAVELENGTH SELECTION, AND TWO-DIMENSIONAL SPECTRALLY-RESOLVED IMAGING CAPABILITY. THE AOTF ESSENTIALLY CONSISTS OF A PIEZOELECTRIC TRANSDUCER BONDED TO A BIREFRINGENT CRYSTAL. EXCITATION OF THE TRANSDUCER BY AN APPLIED RF MODULATES THE INDEX OF REFRATIONVIA THE ELASTO-OPTIC EFFECT. THIS GENERATES A MOVING PHASE GRADIENT WHICH UNDER PROPER CONDITIONS WOULD DIFFRACT PORTIONS OF AN INCIDENT LIGHT BEAM. BOTH COLLINEAR AND NON-COLLINEAR CONFIGURATIONS ARE BEING INVESTIGATED TO ACHIEVE NON-CRITICAL PHASE MATCHING. DESIGN PARAMETER TRADE-OFFS ARE BEING AIMED AT MINIMIZING THE SIZE OF THE DEVICE. CHARGE-COUPLED DEVICE (CCD) ARRAYS AND MICROCHANNEL ARRAY-MULTIANODE DETECTORS ARE BEING EVALUATED. FLAST GATE CCD ARRAYS WITH POTENTIAL FOR 100% QUANTUM EFFICIENCY IN THE UV ARE RECEIVING SPECIAL ATTENTION. SUCCESSFUL DEVELOPMENT OF THE AOTF UV SENSOR WOULD COMBINE THE SPATIAL IMAGING CAPABILITY OF AN INTERFERENCE FILTER AND THE TUNABILITY OF A GRATING SPECTROMETER WITH A SIZE/MASS REDUCTION OF AT LEAST TWO ORDERS OF MAGNITUDE OVER CURRENTLY AVAILABLE SYSTEMS. ANTICIPATED BENEFITS EXIST IN SPACE-BASED INTERCEPTORS, WHERE SMALL SIZE AND MASS ARE OF CRITICAL IMPORTANCE. ADDITIONAL APPLICATIONS INCLUDE GEOPHYSICAL STUDIES, LIDAR REMOTE DETECTION OF ATMOSPHERIC CONSTITUTENTS, AND ANALYTICAL FLUORESCENCE SPECTROSCOPY.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government