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Broadband Superconducting Nanowire Single Photon Detectors

Total Cost €


EC-Contrib. €






 SuSiPOD project word cloud

Explore the words cloud of the SuSiPOD project. It provides you a very rough idea of what is the project "SuSiPOD" about.

quality    broadband    proven    6000    science    aln    detectors    computer    efficiency    suited    critical    close    coupling    thin    unavoidable    imaging    single    counts    photodiodes    material    matched    detection    nitride    unity    substrate    susipod    prototype    optics    spectral    operation    century    dark    geometry    propagating    boosted    triggers    probability    fundamental    quantum    approximately    outperform    transparent    layers    biased    optical    superconducting    pulsing    waveguides    communication    spike    photon    21st    voltage    normal    establishment    ing    realization    paving    impinging    fabrication    leads    infrared    below    absorption    limited    waveguide    alternative    relies    visible    avalanche    band    photons    medical    laterally    nm    light    nanowire    tapered    wavelength    semiconductor    evanescent    ultra    gan    fibre    ranging    space    400    near    generation    gap    coupled    timing    lattice    jitter    nbn    lidar    transition    platform   

Project "SuSiPOD" data sheet

The following table provides information about the project.


Organization address
address: RUE LEBLANC 25
city: PARIS 15
postcode: 75015

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country France [FR]
 Project website
 Total cost 173˙076 €
 EC max contribution 173˙076 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2014
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2015
 Duration (year-month-day) from 2015-07-01   to  2017-06-30


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

Single-photon detection is an emerging technology, with applications ranging from medical imaging and LIDAR systems to space communication and fundamental quantum optics. Moreover, single-photon detectors are considered an enabling technology for the development of quantum information science, paving the way for the realization of one of the main challenges of the 21st century: the quantum computer. Currently, single-photon detection is carried out using semiconductor-based avalanche photodiodes; however, this technology is limited by large timing jitter, unavoidable dark counts, after pulsing, and limited detection efficiency. A recently proposed alternative relies on a superconducting nanowire biased just below its critical current, so that an impinging photon triggers a transition from the superconducting to the normal state, resulting in a voltage spike at the nanowire leads. The detection efficiency can be boosted close to unity by coupling the superconducting nanowire to the evanescent field propagating in a waveguide. However, the fabrication of high quality, ultra-thin superconducting layers is challenging, and the operation wavelength of such devices is limited by the waveguide band gap. We have identified GaN/AlN as the best suited waveguide material system, approximately lattice matched with NbN, and with a transparent band from 400 to 6000 nm. The target of the SuSiPOD project is the establishment of a technology platform for the fabrication of a new generation of broadband superconducting nanowire single-photon detectors built on III-nitride waveguides, in which photons are coupled laterally with the help of a tapered optical fibre. This new geometry should allow near-unity absorption probability in a wide spectral range, since the substrate is transparent to visible and infrared light. The project success will be proven by the realization of a working prototype which will greatly outperform state-of-the-art single-photon detectors.


year authors and title journal last update
List of publications.
2016 L. Redaelli, G. Bulgarini, S. Dobrovolskiy, S. N. Dorenbos, V. Zwiller, E. Monroy, J.M. Gérard
Design of broadband high-efficiency superconducting-nanowire single photon detectors
published pages: , ISSN: 0953-2048, DOI: 10.1088/0953-2048/29/6/065016
Superconductor Science and Technology 2019-07-23
2017 Luca Redaelli ; Gabriele Bulgarini ; Sergiy Dobrovolskiy ; Sander Dorenbos ; Anna Mukhtarova ; Val Zwiller ; Eva Monroy ; Jean-Michel Gérard
High absorption efficiency and polarization-insensitivity in superconducting-nanowire single-photon detectors
published pages: , ISSN: 1996-756X, DOI: 10.1117/12.2252332
2017 L Redaelli, V Zwiller, E Monroy and J M Gérard
Design of polarization-insensitive superconducting single photon detectors with high-index dielectrics
published pages: , ISSN: 0953-2048, DOI: 10.1088/1361-6668/30/3/035005
Superconductor Science and Technology 2019-07-23

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