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A superconducting nanowire single photon detector on lithium niobate

Tanner, M. G. and Alvarez, L. San Emeterio and Jiang, W. and Warburton, R. J. and Barber, Z. H. and Hadfield, R. H.. (2012) A superconducting nanowire single photon detector on lithium niobate. Nanotechnology, Vol. 23, H. 50 , 505201.

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Official URL: http://edoc.unibas.ch/dok/A6083406

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Abstract

Superconducting nanowire single photon detectors (SNSPDs) are a key enabling technology for optical quantum information science. In this paper we demonstrate a SNSPD fabricated on lithium niobate, an important material for high speed integrated photonic circuits. We report a system detection efficiency of 0.15% at a 1 kHz dark count rate with a maximum of similar to 1% close to the critical current at 1550 nm wavelength for a parallel wire SNSPD with front side illumination. There is clear scope for improving on this performance with further materials optimization. Detector integration with a lithium niobate optical waveguide is simulated, demonstrating the potential for high single photon detection efficiency in an integrated quantum optic circuit.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Experimental Physics (Warburton)
UniBasel Contributors:Warburton, Richard J
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:IOP Publ.
ISSN:0957-4484
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:24 May 2013 09:22
Deposited On:24 May 2013 09:04

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