Computer Science – Performance
Scientific paper
Feb 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aipc..605...15w&link_type=abstract
LOW TEMPERATURE DETECTORS: Ninth International Workshop on Low Temperature Detectors. AIP Conference Proceedings, Volume 605, p
Computer Science
Performance
2
Superconducting Optical, X-Ray, And Gamma-Ray Detectors
Scientific paper
We present results of development of imaging superconducting tunnel junction detectors in the optical/UV energy range. Our detectors have a Ta strip absorber with Al tunnel junctions located on the two ends of the strip. The tunnel junction area does not overlap the absorber. Using devices designed for large backtunneling gain, we have measured an energy resolution of 0.4 eV at 4.89 eV. The resolution in these devices is limited by thermodynamic fluctuations of the thermal quasiparticle number in the Al trapping layers. We predict that this previously unconsidered noise source should be important in any backtunneling device with ``deep'' traps. We are currently developing detectors designed to eliminate this noise and, consequently, backtunneling gain. These devices need small junctions, of order 1 square micron, for best noise performance. The resolution of these devices should approach the intrinsic limits of creation and trapping statistics, and exceed the resolution of devices with backtunneling. .
Frunzio Luigi
Li Lexin
Prober Daniel E.
Stahle Carl M.
Stevenson Thomas
No associations
LandOfFree
Approaching intrinsic resolution limits in optical/UV superconducting tunnel junction detectors 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 Approaching intrinsic resolution limits in optical/UV superconducting tunnel junction detectors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Approaching intrinsic resolution limits in optical/UV superconducting tunnel junction detectors will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1789911