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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.

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

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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