The Air Force Research Laboratory (AFRL) at Wright-Patterson Air Force Base is conducting a Sources Sought notice for a Superconducting Nanowire Single-Photon Detection (SNSPD) System. This notice is for market research only and does not obligate the government to award a contract or pay for any costs. Interested small business concerns must express their interest and provide capability information addressing the draft minimum requirements. Responses should include company identification, small business designation, and relevant experience, and must be submitted electronically to the designated contact. Performance would be at Wright-Patterson Air Force Base.