Accession Number:
ADP011749
Title:
Wide Bandwidth Far-Infrared Mixing Using a High-T(c) Superconducting Bolometer
Descriptive Note:
Corporate Author:
LUCENT TECHNOLOGIES INC MURRAY HILL NJ
Personal Author(s):
Report Date:
2000-09-29
Pagination or Media Count:
3.0
Abstract:
We report on the gain bandwidth and noise characteristics of far-infrared mixers using high-Tc superconducting YBa2Cu3O7 YBCO thin films. The YBCO films are patterned into lattice-cooled hot-electron bolometers HEBs coupled to an integrated antenna and transmission line. Heterodyne and homodyne down- conversion using LO frequencies of 115 GHz and 585 GHz show a device conversion gain of as high as -9.5 dB at 66 K using 1 micro W of LO power. Y-factor noise measurements show a double-sideband noise temperature of 3400 K at 66 K. Both gain and noise bandwidths show a single-pole roll-off with -3 dB point near 10 GHz.
Descriptors:
- *FAR INFRARED RADIATION
- *BROADBAND
- *MIXING
- *BANDWIDTH
- *HIGH TEMPERATURE SUPERCONDUCTORS
- *BOLOMETERS
- *YTTRIUM BARIUM COPPER OXIDES
- INTEGRATED SYSTEMS
- SYMPOSIA
- HETERODYNING
- HIGH TEMPERATURE
- ELECTRON SCATTERING
- THIN FILMS
- TRANSMISSION LINES
- MILLIMETER WAVES
- ELECTRON ENERGY
- FREQUENCY BANDS
- GAIN
- ANTENNAS
- PHONONS
- SIDEBANDS
- SUBMILLIMETER WAVES
- NOISE(ELECTRICAL AND ELECTROMAGNETIC)
- SUPERCONDUCTIVITY
- INELASTIC SCATTERING
- HOMODYNE RADIO RECEIVERS
Subject Categories:
- Electrical and Electronic Equipment
- Electricity and Magnetism
- Optics