Computer Science – Performance
Scientific paper
Apr 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003spie.5116..563b&link_type=abstract
Smart Sensors, Actuators, and MEMS. Edited by Chiao, Jung-Chih; Varadan, Vijay K.; Cane, , Carles. Proceedings of the SPIE, Vol
Computer Science
Performance
2
Scientific paper
Observation and analysis of submillimeter-wave radiation (300GHz-3THz) in astronomy and atmospheric sciences requires increasingly performant receivers. The most sensitive receivers working in this range of electromagnetic spectrum use superconductor-insolator-superconductor (SIS) junctions. In order to increase the bandwidth and the sensitivity, we are developing a quantum-noise limited heterodyne receiver based on several parallel SIS junctions with broad (larger than 30%) fixed tuned bandwidth. These circuits can be viewed as passband filters which have been optimized by varying the spacings between junctions. We have designed such 5-junction arrays for operation in the range 480-640 GHz. Fabrication and heterodyne characterization of these devices has been done. The 1 µm2 junctions current density ranges from 4 to 13 kA/cm2, using optical lithography and Nb/Al2Nb5/Nb trilayer sputtering technology. The fabrication process and yield are presented in this paper, along with measured performances
Boussaha Faouzi
Chaubet Michel
Delorme Yan
Feret Alexandre
Lecomte Benoit
No associations
LandOfFree
Submillimeter mixers based on superconductive parallel junction arrays does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Submillimeter mixers based on superconductive parallel junction arrays, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Submillimeter mixers based on superconductive parallel junction arrays will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1326930