Submillimeter detector operation of granular superconducting NbN films

Journal Article · Tue May 15 00:00:00 EDT 1984 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.332908· OSTI ID:6876137

Carr, G L; Karecki, D R; Perkowitz, S

Detection of submillimeter radiation between 10 and 40 cm/sup -1/ (300--1200 GHz) has been carried out with a high resistance granular NbN film (R/sub D'Alembertian/ = 8440 ..cap omega../D'Alembertian) below 6 K with evidence of Josephson-like operation. The nonoptimized detector sensitivity and noise equivalent power at 17.5 cm/sup -1/ (525 GHz) were about 20 V/W and 5 x 10/sup -8/ W/Hz/sup 1//sup ///sup 2/, respectively, comparable to values obtained with granular Sn and Pb.

• Research Organization: Physics Department, Emory University, Atlanta, Georgia 30322
• DOE Contract Number: AS05-79ER10436
• OSTI ID: 6876137
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 55:10; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DETECTION
ELECTROMAGNETIC RADIATION
ELEMENTS
FABRICATION
FAR INFRARED RADIATION
FILMS
FREQUENCY RANGE
GHZ RANGE
GHZ RANGE 100-1000
INFRARED RADIATION
JOSEPHSON JUNCTIONS
JUNCTIONS
LEAD
MEASURING INSTRUMENTS
METALS
MICROWAVE RADIATION
NIOBIUM COMPOUNDS
NIOBIUM NITRIDES
NITRIDES
NITROGEN COMPOUNDS
NOISE
OPERATION
PHYSICAL PROPERTIES
PNICTIDES
POWER
RADIATION DETECTION
RADIATION DETECTORS
RADIATIONS
RADIOMETERS
SENSITIVITY
STABILITY
SUPERCONDUCTING DEVICES
SUPERCONDUCTING FILMS
SUPERCONDUCTING JUNCTIONS
THERMODYNAMIC PROPERTIES
TIN
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
ULTRALOW TEMPERATURE