our design philosophy
To create high-quality, durable products that provide exceptional performance and modularity, all while ensuring ease of use.
proven & trusted
Our products have been used in NASA missions, by metrology institutes such as NIST, and by companies working on developing breakthroughs in quantum computing and communications.
products
cryogenics
Our most popular cryogenic system delivers temperatures below 1 Kelvin (−272°C) without the consumption and running expense of liquid helium.
detectors
Our superconducting nanowire single-photon detectors (SNSPDs) exhibit ultralow dark counts, sub-100ps jitter, and >90% quantum efficiency near 1550nm.
solutions
We deliver solutions to challenging scientific instrumentation problems. Research and development is the cornerstone of our company.
news
APR 2026
artemis ii optical comm link successful
Photon Spot's detector systems, developed in collaboration with JPL, were successfully used to receive data from the Orion spacecraft as a part of the Orion Artemis II Optical Communications System . Our systems performed flawlessly over the entirety of the mission.
FEB 2026
demonstration of entanglement-assisted interferometry
The Lukin group at Harvard, along with collaborators, demonstrate entanglement-assisted non-local optical interferometry, published in a Nature article. Photon Spot's detectors were used in this work.
MAR 2025
charged particle detection
Researchers at Fermilab with collaborators at Caltech, JPL and Universidad Tecnica Federico Santa Maria detect charged particles using SMSPDs in a cryospot 5.