Superconducting Photomultiplier: High Sensitivity Detection

Award Information
Agency: Department of Defense
Branch: Missile Defense Agency
Contract: N/A
Agency Tracking Number: 19561
Amount: $49,670.00
Phase: Phase I
Program: SBIR
Awards Year: 1993
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
175 Clearbrook Road, Elmsford, NY, 10523
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Masoud Radparvar
 (914) 592-1190
Business Contact
Phone: () -
Research Institution
N/A
Abstract
JOSEPHSON JUNCTION PHOTOMULTIPLIER NIOBIUM TUNNEL JUNCTION HYPRES UTILIZES A THIN, OPTICALLY SENSITIVE, MULTILAYER SUPERCONDUCTING FILM WHICH FORMS ONE ELECTRODE OF A JOSEPHSON JUNCTION USED FOR DETECTING ULTRA-VIOLET, OPTICAL AND INFRARED RADIATION. THE SUPERCONDUCTING PHOTOMULTIPLIER, A FUNDAMENTAL ADVANCE BEYOND JUNCTION DETECTORS, EMPLOYS A SEPARATELY OPTIMIZED DETECTING LAYER, MATED WITH A HIGH QUALITY NIOBIUM AMPLIFYING JUNCTION. IT WILL PROVIDE SUBNANOSECOND OPTICAL RESPONSE, ULTRA-LOW NOISE AND HIGH RESPONSIVITY FROM UV THROUGH THE INFRARED. HYPRES HAS ALREADY FABRICATED THE KEY ELEMENT, A NIOBIUM NITRIDE LAYER OVER A NIOBIUM TUNNEL JUNCTION, AS WELL AS YBCO FILM AND NIOBIUM TUNNEL JUNCTIONS ON THE SAME SUBSTRATE. THE GAIN OF SUCH DEVICES IS ESTIMATED TO BE IN EXCESS OF 100. THIS TECHNOLOGY ALLOWS COMBINING SUPERCONDUCTIVE SIGNAL PROCESSING CIRCUITS WITH OPTICAL RECEIVERS AND ACTIVE AND PASSIVE FOCAL PLANE ARRAYS.

* Information listed above is at the time of submission. *

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