Published November 1, 2010
| Published
Journal Article
Open
A high efficiency superconducting nanowire single electron detector
Chicago
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Abstract
We report the detection of single electrons using a Nb_(0.7)Ti_(0.3)N superconducting wire deposited on an oxidized silicon substrate. While it is known that this device is sensitive to single photons, we show that it also detects single electrons with kilo-electron-volt energy emitted from the cathode of a scanning electron microscope with an efficiency approaching unity. The electron and photondetection efficiency map of the same device are in good agreement. We also observe detection events outside the active area of the device, which we attribute to sensitivity to backscattered electrons.
Additional Information
© 2010 American Institute of Physics. Received 11 July 2010; accepted 5 October 2010; published online 3 November 2010. M.R., F.R.L., J.P.M., A.L., and G.N. thank the Japan Science and Technology Corporation (ICORP: "Quantum Entanglement") and the Région Ile de France (Cnano IdF project). A.L. acknowledges support from the European Union through a Marie Curie fellowship. S.D. and V.Z. acknowledge NWO for funding. We thank Reinier Heeres for help with the optical measurement. T.M.K. acknowledges NWO for funding through Grant No. 614.061.010.Attached Files
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Additional details
- Eprint ID
- 65306
- Resolver ID
- CaltechAUTHORS:20160311-133030944
- Japan Science and Technology Corporation
- Région Ile de France
- Marie Curie Fellowship
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO)
- 614.061.010
- Created
-
2016-03-11Created from EPrint's datestamp field
- Updated
-
2021-11-10Created from EPrint's last_modified field
- Caltech groups
- Keck Institute for Space Studies