Photon Spot, Inc.

Photon Spot, Inc. describes itself as a provider of cryogenic and quantum detection systems, with operations dating to 2009. Its website says the company builds products intended to support quantum technologies and lists customers and users including NASA missions, NIST, and companies working on quantum computing and communications.

The company’s product areas include cryogenics, detectors, and custom solutions. Photon Spot highlights cryogenic systems that reach below 1 Kelvin without liquid helium consumption, and superconducting nanowire single-photon detectors (SNSPDs) with stated performance near 1550 nm. The site also notes detector-system work developed with JPL for the Orion Artemis II Optical Communications System, and says its detectors were used in published entanglement-assisted interferometry research. The company is relevant to the quantum-technology sector as a supplier of enabling hardware components and cryogenic infrastructure.