The Air Force Research Laboratory (AFRL) at Wright-Patterson Air Force Base is seeking information on industry capabilities for a Superconducting Nanowire Single-Photon Detection (SNSPD) System. This is a Sources Sought notice for market research only, not a solicitation or request for quotes. Interested small businesses must submit a capability response by 24 July 2026 at 10 AM Eastern Time to demonstrate their ability to meet the draft minimum requirements. Responses should include company details, small business status, and relevant experience, sent electronically to the specified contact with a required subject line. No budget amount or performance location beyond Wright-Patterson Air Force Base is specified.