A compact 4 K cooling system for superconducting nanowire single photon detectors

27th International Cryogenics Engineering Conference and International Cryogenic Materials Conference 2018

Hills, M.J.^1 ; Bradshaw, T.W.^1 ; Dobrovolskiy, S.^4 ; Dorenbos, S.N.^4 ; Gemmell, N.R.^2 ; Green, B.^1 ; Heath, R.M.^3 ; Rawlings, T.^1 ; Tsimvrakidis, K.^3 ; Zwiller, V.^4^5 ; Crook, M.R.^1 ; Hadfield, R.H.^3

STFC Rutherford Appleton Laboratory, Harwell Campus, Didcot

OX11 0QX, United Kingdom^1

Department of Physics and Astronomy, University of Sussex, Falmer, Brighton

BN 1 9RH, United Kingdom^2

School of Engineering, University of Glasgow, Glasgow

G12 8QQ, United Kingdom^3

Single Quantum B.V., Delft

CH 2628, Netherlands^4

Department of Applied Physics, Royal Institute of Technology (KTH), Stockholm

SE-106 91, Sweden^5

关键词: Infrared photons;    Low temperatures;    Manufacturability;    Quantum technologies;    Single photons;    Space missions;    Stirling coolers;    Superconducting nanowire single photon detectors;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/502/1/012193/pdf
DOI  :  10.1088/1757-899X/502/1/012193

来源: IOP

【 摘 要 】

Compact, low power, robust closed-cycle cooling platforms are a key requirement for emerging low temperature quantum technologies. We have repurposed a 4 K Stirling/Joule-Thomson cooler built for the Planck space mission into a flexible demonstration system. We have verified a cooling power of 4mW at 4.7K. We have installed a fibre-coupled superconducting nanowire single-photon detector in this platform and deployed it for two key advanced infrared photon counting applications: single-photon LIDAR and dosimetry for laser cancer treatment. We discuss proposed improvements to the Stirling cooler design for increased cooling power, manufacturability and turn-key operation.