Sub-Kelvin Cryogenics &
Superconducting Nanowire Single-Photon Detectors

Photon Spot's detectors and cryogenic systems are used by top research groups around the world. Our superconducting nanowire single-photon detectors (SNSPD) exhibit ultralow dark counts, sub-100ps jitter, and near-90% quantum efficiency near 1550nm.  This unparalleled detector performance brings much-needed solutions to difficult problems in free-space optical communication, quantum optics experiments, linear optics quantum computing, and semiconductor diagnostics.

Our fully-automated closed-cycle cryostats deliver temperatures below 1K (-272ºC, -457ºF) without the consumption and running expense of liquid helium.  Our cryostats are a cost-effective and straight-forward alternative to other technologies like ADRs or dilution fridges in situations where temperatures in the 0.8K - 1K range are desired for an experiment.

We provide a modular system architecture to enable mix-and-match pairing of SNSPDs and cryogenics, so you can build the detector system that meets your exact needs. And if we do not have what you need, we can build it for you. Visit Cryogenics and Detectors to learn more.