Photon-number resolving detector based on a series array of superconducting nanowires

S. Jahanmirinejad; G. Frucci; F. Mattioli; D. Sahin; A. Gaggero; R. Leoni; A. Fiore

doi:10.1063/1.4746248

Photon-number resolving detector based on a series array of superconducting nanowires

S. Jahanmirinejad^*, G. Frucci, F. Mattioli, D. Sahin, A. Gaggero, R. Leoni, A. Fiore

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

76 Citations (Scopus)

Abstract

We present the experimental demonstration of a superconducting photon number resolving detector. It is based on the series connection of N superconducting nanowires, each connected in parallel to an integrated resistor. The device provides a single voltage readout, proportional to the number of photons detected in distinct nanowires. Clearly separated output levels corresponding to the detection of n = 1-4 photons are observed in a 4-element detector fabricated from an NbN film on GaAs substrate, with a single-photon system quantum efficiency of 2.6 at λ = 1.3 μm. The series-nanowire structure is promising in view of its scalability to large photon numbers and high efficiencies.

Original language	English
Article number	072602
Journal	Applied Physics Letters
Volume	101
Issue number	7
DOIs	https://doi.org/10.1063/1.4746248
Publication status	Published - 13 Aug 2012

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title = "Photon-number resolving detector based on a series array of superconducting nanowires",

abstract = "We present the experimental demonstration of a superconducting photon number resolving detector. It is based on the series connection of N superconducting nanowires, each connected in parallel to an integrated resistor. The device provides a single voltage readout, proportional to the number of photons detected in distinct nanowires. Clearly separated output levels corresponding to the detection of n = 1-4 photons are observed in a 4-element detector fabricated from an NbN film on GaAs substrate, with a single-photon system quantum efficiency of 2.6 at λ = 1.3 μm. The series-nanowire structure is promising in view of its scalability to large photon numbers and high efficiencies.",

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AU - Jahanmirinejad, S.

AU - Frucci, G.

AU - Mattioli, F.

AU - Sahin, D.

AU - Gaggero, A.

AU - Leoni, R.

AU - Fiore, A.

PY - 2012/8/13

Y1 - 2012/8/13

N2 - We present the experimental demonstration of a superconducting photon number resolving detector. It is based on the series connection of N superconducting nanowires, each connected in parallel to an integrated resistor. The device provides a single voltage readout, proportional to the number of photons detected in distinct nanowires. Clearly separated output levels corresponding to the detection of n = 1-4 photons are observed in a 4-element detector fabricated from an NbN film on GaAs substrate, with a single-photon system quantum efficiency of 2.6 at λ = 1.3 μm. The series-nanowire structure is promising in view of its scalability to large photon numbers and high efficiencies.

AB - We present the experimental demonstration of a superconducting photon number resolving detector. It is based on the series connection of N superconducting nanowires, each connected in parallel to an integrated resistor. The device provides a single voltage readout, proportional to the number of photons detected in distinct nanowires. Clearly separated output levels corresponding to the detection of n = 1-4 photons are observed in a 4-element detector fabricated from an NbN film on GaAs substrate, with a single-photon system quantum efficiency of 2.6 at λ = 1.3 μm. The series-nanowire structure is promising in view of its scalability to large photon numbers and high efficiencies.

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JO - Applied Physics Letters

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Photon-number resolving detector based on a series array of superconducting nanowires

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