Nb/PbBi SIS mixer elements for millimeter-wave applications
Thesis/Dissertation
·
OSTI ID:6331782
A relatively new approach to millimeter-wave mixing utilizes the highly nonlinear single-electron tunneling characteristic of superconductor-insulator-superconductor (SIS) tunnel junctions. SIS mixers offer considerable advantages over conventional mixers in many areas of millimeter-wave radiometry. They generally require a local oscillator power several orders of magnitude lower than Schottky-diode mixers. They have also demonstrated the possibility of a conversion gain and a mixer noise temperature approaching the quantum limit. This document presents the development of an edge-contact SIS device incorporating niobium and a lead/bismuth alloy as the super-conducting materials. Detailed theoretical analysis of this structure is presented, as well as the complete details of several fabrication technologies developed during the course of this work. This includes a novel technique for the fabrication of devices with an aluminum oxide dielectric layer.
- Research Organization:
- Virginia Univ., Charlottesville (USA)
- OSTI ID:
- 6331782
- Country of Publication:
- United States
- Language:
- English
Similar Records
Optimization of SIS mixer elements. Final report
Superconducting quasi-particle mixers for moderate power levels using refractory metals. Report for September 1983-September 1984
Quantum-limited detection of millimeter waves using superconducting tunnel junctions
Technical Report
·
Sat Nov 30 23:00:00 EST 1985
·
OSTI ID:5573453
Superconducting quasi-particle mixers for moderate power levels using refractory metals. Report for September 1983-September 1984
Technical Report
·
Mon Oct 15 00:00:00 EDT 1984
·
OSTI ID:5621951
Quantum-limited detection of millimeter waves using superconducting tunnel junctions
Thesis/Dissertation
·
Mon Dec 31 23:00:00 EST 1990
·
OSTI ID:7043766
Related Subjects
42 ENGINEERING
420201* -- Engineering-- Cryogenic Equipment & Devices
420800 -- Engineering-- Electronic Circuits & Devices-- (-1989)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALLOYS
AMPLIFICATION
BISMUTH ALLOYS
ELECTRONIC EQUIPMENT
ELEMENTS
EQUIPMENT
FLUXMETERS
GAIN
JUNCTIONS
LEAD ALLOYS
MEASURING INSTRUMENTS
METALS
MICROWAVE EQUIPMENT
NIOBIUM
NOISE
SQUID DEVICES
SUPERCONDUCTING DEVICES
SUPERCONDUCTING JUNCTIONS
TEMPERATURE NOISE
TRANSITION ELEMENTS
TUNNEL EFFECT
420201* -- Engineering-- Cryogenic Equipment & Devices
420800 -- Engineering-- Electronic Circuits & Devices-- (-1989)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALLOYS
AMPLIFICATION
BISMUTH ALLOYS
ELECTRONIC EQUIPMENT
ELEMENTS
EQUIPMENT
FLUXMETERS
GAIN
JUNCTIONS
LEAD ALLOYS
MEASURING INSTRUMENTS
METALS
MICROWAVE EQUIPMENT
NIOBIUM
NOISE
SQUID DEVICES
SUPERCONDUCTING DEVICES
SUPERCONDUCTING JUNCTIONS
TEMPERATURE NOISE
TRANSITION ELEMENTS
TUNNEL EFFECT