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HIGHLY SENSITIVE INFRARED DETECTOR FABRICATED WITH THIN FILM OF HIGH TC…

Award Information

Agency:
Department of Defense 		Branch:
Defense Advanced Research Projects Agency 		Award ID:
8605 		Program Year/Program:
1988 / SBIR
Agency Tracking Number:
8605 		Solicitation Year:
N/A 		Solicitation Topic Code:
N/A 		Solicitation Number:
N/A
Small Business Information
Excel Superconductors, Inc.
140-29 Keyland Court Bohemia, NY 11716
View profile »
Woman-Owned: No
Minority-Owned: Yes
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1988
Title: HIGHLY SENSITIVE INFRARED DETECTOR FABRICATED WITH THIN FILM OF HIGH TC Y-BA-CUO SUPERCONDUCTOR USING PULSED EXCIMER LASER
Agency / Branch: DOD / DARPA
Contract: N/A
Award Amount: $50,000.00
 

Abstract:

IN THE PROPOSED WORK, FEASIBILITY OF DEVELOPING A HIGHLY SENSITIVE AND HIGH SPEED OPTICAL DETECTOR IN THE INFRARED REGION USING A SUPERCONDUCTING WEAK LINK FABRICATED BY LASER INDUCED DEPOSITION OF Y-BA-CU-O THIN FILMS, IS EXAMIED. THE DETECTION PRINCIPLE IS BASED ON THE FACT THAT INCIDENT INFRARED RADIATION PRODUCES A VOLTAGE ACROSS THE JOSEPHSON JUNCTION WHICH CAN SERVE AS A USEFUL DETECTOR OUTPUT. IN THE PRESENT WORK, BULK SUPERCONDUCTOR SAMPLES OF Y-BA-CU-OWILL BE PREPARED BY SOLID STATE REACTION METHOD. THIN SUPERCONDUCTING FILM ON A SUITABLE SUBSTRATE WILL BE PREPARED BY LASER INDUCED DEPOSITION TECHNIQUE USING PULSED EXCIMER LASER. IN THIS TECHNIQUE, THE U.V. LASER REMOVES MOLECULES (PHOTO-ABLATION) FROM THE SUPERCONDUCTOR TARGET WHICH ARE SUBSEQUENTLY DEPOSITED ON MGO SUBSTRATE WHICH HAS BEEN CLEAVED TO FORM A WEAK LINK. A MAJOR ADVANTAGE OF THE PROPOSED TECHNIQUE IS THAT DUE TO EXCELLENT SPATIAL QUALITY AND SHORT WAVELENGTH (O.28 MICRO) OF THE LASER, IT PROVIDES A PRECISE CONTROL OVER THE DEPOSITION PROCESS WITH SUBMICRON RESOLUTION. FOR DETECTION, INFRARED SIGNALS WILL BE MODULATED AND GUIDED THROUGH A OPTICAL FIBER TO THE DETECTOR. DETECTOR PERFORMANCE IN TERMS OF, RESPONSIVITY AND DYNAMIC RANGE, IN THE SPECTRAL REGION OF 1-10 MICRON WILL BE EVALUATED.

Principal Investigator:

Dr rama rao
5167324016

Business Contact:

Small Business Information at Submission:

Excel Technology Inc
20 Westfield Rd Coram, NY 11727

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