Published July 1, 2021 | Version v1
Journal article Metadata-only

Superconducting single-photon detector with a system efficiency of 93% operated in a 2.4 K space-application-compatible cryocooler

Creators

  • 1. State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences (CAS), 865 Changning Rd., Shanghai 200050 (China)
  • 2. Key Laboratory of Technology on Space Energy Conversion, Technical Institute of Physics and Chemistry (TIPC), Chinese Academy of Sciences (CAS), Beijing 100190 (China)
  • 3. CAS Center for Excellence in Superconducting Electronics, 865 Changning Rd., Shanghai 200050 (China)

Description

We report herein the development of a superconducting nanowire single-photon detector (SNSPD) that uses a hybrid cryocooler compatible with space applications. The hybrid cryocooler incorporates a two-stage high-frequency pulse-tube cryocooler and a Joule–Thomson loop, which produces a minimum temperature of 2.2 K. The SNSPD with the structure of sandwiched nanowires integrated in the cryocooler shows a maximum detection efficiency of 93% at 1550 nm, which makes it promising for deep-space communications and quantum information applications. (letter)

Availability note (English)

Available from http://dx.doi.org/10.1088/1361-6668/abff14

Additional details

Identifiers

DOI
10.1088/1361-6668/abff14;

Publishing Information

Journal Title
Superconductor Science and Technology
Journal Volume
34
Journal Issue
7
Journal Page Range
[4 p.]
ISSN
0953-2048
CODEN
SUSTEF

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
53053020
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
EFFICIENCY; NANOWIRES; PHOTONS; QUANTUM INFORMATION; SPACE
Descriptors DEC
BOSONS; ELEMENTARY PARTICLES; INFORMATION; MASSLESS PARTICLES; NANOSTRUCTURES