High efficiency. Unrivalled time resolution.

Single Quantum SNSPDs hold the world record of high detection efficiency in combination with low timing jitter.

Single Quantum SNSPD System

The best solution for your applications

Single Quantum has installed more than 90 systems with satisfied customers worldwide.

Publications by our users

What we make

SNSPD (superconducting nanowire single photon detector)

Light detectors are crucial components of optical imaging and telecommunication systems. The ultimate photon detector is capable of detecting even an elementary particle of light, a single photon.

Single Quantum develops the best single photon detectors, based on superconducting nanowires. The SNSPDs are provided with closed-cycle cryostat, which provides the low temperature environment for the superconducting nanowires. The high performance of our SNSPDs makes them the ideal choice for the most demanding applications.

With satisfied customers worldwide, Single Quantum is recognized for the high quality and the reliability of our detectors. We provide the best solution for your experiment and dedicated customer service.

Our photon detector features

  • Unparalleled detection efficiency
  • Low timing jitter
  • High count rate
  • Low dark counts
  • Robust fiber coupling
  • No helium consumption
  • Broadband photon detection
  • Easy to use – plug & play

The SNSPD technology

Photon detection with efficiency and time resolution

Single Quantum multi-channel SNSPD system combines high detection efficiency, high time resolution, low dark count rate, and high count rate. It can detect single photons with higher than 85% efficiency over a broad spectral range and an ultra-high timing resolution of less than 15 ps.

The detection principle is based on the transition of a nanowire from the superconductive to the resistive state upon the absorption of a single photon. The detectors are pigtailed with an optical fiber and operated in a closed-cycle cryostat at 2.5 Kelvin. The design enables continuous operation for up to 10,000 hours and requires no liquid helium consumption, thus a turn-key solution for optical measurements.

The system is designed for applications in quantum information technology, quantum communication and quantum cryptography, infrared time-resolved spectroscopy, laser ranging and remote sensing (LiDAR).

Latest news

Single Quantum Awarded 5 ATTRACT Projects

Tuesday, Jan 28th 2020

We are pleased to announce that Single Quantum has been awarded 5 ATTRACT projects with our partners, including the Molecular Quantum Optics & Quantum Nanophysics group from Vienna University, KTH Royal Institute of Technology in Stockholm, and the Medical Physics & Technology group from TU Delft. With the support of ATTRACT, we are going to develop SNSPDs for exciting new applications.

Nature Paper Demonstrates Strong Coupling Cavity QED

Thursday, Oct 24th 2019

A group of scientists at the University of Basel and Ruhr-University Bochum have created an efficient quantum-mechanical light-matter interface using a microscopic cavity. This opens up new prospects for quantum technology. The HBT measurement was carried out with Single Quantum Eos. The results are reported in the recent issue of Nature. We congratulate the team for the beautiful work!

Single Photon Workshop 2019

Wednesday, Oct 23rd 2019

This week from the 21st to 25th of October, we are attending the Single Photon Workshop 2019  at Politecnico di Milano. SPWis intended to bring together a broad range of researchers with interests in single-photon sources, single-photon detectors, photon entanglement, and their incorporation into scientific and industrial tools. Please find us at booth number F.