Quantum Efficiency and Noise Equivalent Power of Nanostructured, NbN, Single-Photon Detectors in the Wavelength Range From Visible to Infrared

Korneev, A.; Matvienko, V.I.; Minaeva, Olga; Milostnaya, I.; Rubtsova, I.; Chulkova, G.; Smirnov, K.; Voronov, V. V.; Gol’tsman, G.; Słysz, W.; Pearlman, Aaron; Verevkin, A.; Sobolewski, Roman

doi:10.1109/tasc.2005.849923

Cited by 68 publications

(49 citation statements)

References 13 publications

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“…We note that a higher QE and a much lower DK may be obtained by cooling the device down to 2K [3]. The time resolved response pulse of our best SSPD showed a full width at half maximum (FWHM) as low as 1.6ns (inset Fig.…”

Section: −16mentioning

confidence: 82%

“…Nanowire superconducting single photon detectors (SSPDs) [2] are interesting candidates for these requirements. So far, high-sensitivity ultrafast SSPDs have been fabricated only on 4nm thick NbN films grown on sapphire substrates at high temperatures (typically 900 • C) [3,4]. This significantly limits the integration of SSPDs with advanced optical structures (e.g.…”

Section: Introductionmentioning

confidence: 99%

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High efficiency NbN nanowire superconducting single photon detectors fabricated on MgO substrates from a low temperature process

Marsili¹,

Bitauld²,

Fiore³

et al. 2008

Opt. Express

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. (2008). High efficiency NbN nanowire superconducting single photon detectors fabricated on MgO substrates from a low temperature process. Optics Express, 16(5), 3191-3196. DOI: 10.1364/OE.16.003191 General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal ? Take down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. Abstract:We demonstrate high-performance nanowire superconducting single photon detectors (SSPDs) on bN thin films grown at a temperature compatible with monolithic integration. NbN films ranging from 150nm to 3nm in thickness were deposited by dc magnetron sputtering on MgO substrates at 400 • C. SSPDs were fabricated on high quality NbN films of different thickness (7 to 3nm) deposited under optimal conditions. Electrical and optical characterizations were performed on the SSPDs. The highest QE value measured at 4.2K is 20% at 1300nm. Berggren, "Nanowire Single-photon detector with an integrated optical cavity and anti-reflection coating" Opt. Express 14(2), 527-534 (2006). 5. K. Iizuka, K. Matsumaru, T. Suzuki, H. Hirose, K. Suzuki, and H. Okamoto, "Arsenic-free GaAs substrate preparation and direct growth of GaAs/AlGaAs multiple quantum well without buffer layer" J. Cryst. Growth 150(1 -4 pt 1), 13-17 (1995 Gol'tsman, and A. Semenov, "Detection efficiency of large-active-area NbN single-photon superconducting detectors in the ultraviolet to near-infrared range" Appl.

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Section: −16mentioning

confidence: 82%

Section: Introductionmentioning

confidence: 99%

High efficiency NbN nanowire superconducting single photon detectors fabricated on MgO substrates from a low temperature process

Marsili¹,

Bitauld²,

Fiore³

et al. 2008

Opt. Express

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“…From data showed in Fig. 3 we can estimate a NEP ͑noise equivalent power͒, 16 ranging from 1.3ϫ 10 −17 W / ͱ Hz at 0.91I c ͑corre-sponding to a QE= 5.1%͒ to 1.3ϫ 10 −16 W / ͱ Hz at 0.99I c ͑corresponding to a QE= 18.3%͒. The fact that the peak QE is lower than the theoretical absorptance of 83% and than previously reported QE values for microcavity SSPDs on sapphire 17 and silica 18 is ascribed to the limited internal quantum efficiency ͑ is the probability that a photocreated hotspot produces a transition to the resistive state͒.…”

Section: -mentioning

confidence: 99%

Nanowire superconducting single-photon detectors on GaAs for integrated quantum photonic applications

Gaggero

Nejad

Marsili

et al. 2010

Applied Physics Letters

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We demonstrate efficient nanowire superconducting single photon detectors (SSPDs) based on NbN thin films grown on GaAs. NbN films ranging from 3 to 5 nm in thickness have been deposited by dc magnetron sputtering on GaAs substrates at 350 °C. These films show superconducting properties comparable to similar films grown on sapphire and MgO. In order to demonstrate the potential for monolithic integration, SSPDs were fabricated and measured on GaAs/AlAs Bragg mirrors, showing a clear cavity enhancement, with a peak quantum efficiency of 18.3% at λ=1300 nm and T=4.2 K.

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“…One problem is the limited quantum efficiency and the need for a better understanding of the parameters influencing this quantity. Despite all the progress in fabrication technologies it is still puzzling that reported maximum quantum efficiencies scatter over at least one order of magnitude for otherwise comparable detectors [6,7,8,9,10].…”

Section: Introductionmentioning

confidence: 99%

NbN superconducting nanowire photon counters: magnetoconductivity and other detector properties

Engel¹,

Bartolf²,

Gomez³

et al. 2009

AIP Conference Proceedings

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Abstract. We present an analysis of magnetoconductivity measurements on NbN thin films and nanostructures as they are used for superconducting nanowire single-photon detectors. Especially the temperature-dependence of the fluctuation conductivity near the zero-field transition temperature was studied in detail. Together with complementary measurements of the optical constants of NbN films with varying thickness, strategies for improving the absorptivity in NbN thin films are developed.

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Quantum Efficiency and Noise Equivalent Power of Nanostructured, NbN, Single-Photon Detectors in the Wavelength Range From Visible to Infrared

Cited by 68 publications

References 13 publications

High efficiency NbN nanowire superconducting single photon detectors fabricated on MgO substrates from a low temperature process

High efficiency NbN nanowire superconducting single photon detectors fabricated on MgO substrates from a low temperature process

Nanowire superconducting single-photon detectors on GaAs for integrated quantum photonic applications

NbN superconducting nanowire photon counters: magnetoconductivity and other detector properties

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