Quantum tomography of superconducting single photon detectors

J.J. Renema, R. Gaudio, Q. Wang, Z. Zhou, A. Gaggero, F. Mattioli, R. Leoni, D. Sahin, M.J.A. de Dood, A. Fiore, M.P. van Exter

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review


Nanowire superconducting single photon detectors (SSPDs) consist of a thin (~ 4 to 6 nm) and narrow (~ 50 to 200 nm) superconducting wire biased close to the critical current. Operating conditions are such that the absorption of one or more photons locally transfers the detector to its normal state, which then results in a detectable electrical pulse. SSPDs are versatile detectors that operate in a wide wavelength range (from UV to mid-infrared) with almost negligible dark counts. They are typically shaped in the form of a meander to cover a sizeable fraction of a sufficiently large 2D surface, but other shapes have also been produced and are often easier to analyse. Until recently, the working principle of SSPDs was badly understood and several competing theory were formulated.
Original languageEnglish
Title of host publicationEuropean Quantum Electronics Conference, EQEC 2015
PublisherOptical Society of America (OSA)
ISBN (Print)9781467374750
Publication statusPublished - 21 Jul 2014
EventEuropean Quantum Electronics Conference, (EQEC 2015) - Munich, Germany
Duration: 21 Jun 201525 Jun 2015


ConferenceEuropean Quantum Electronics Conference, (EQEC 2015)
Abbreviated titleEQEC2015

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