The Department of Commerce's National Institute of Standards and Technology (NIST) is conducting a sources sought notice for a tunable laser, specifically a 780 nm laser, as part of its CHIPS R&D Program. The laser is required for mass sensing experiments related to atomic layer deposition processes critical in semiconductor manufacturing, aiming to enhance measurement capabilities and optimize fabrication yields. NIST intends to issue a sole source award to Toptica Photonics Inc if no other capable sources are identified, with responses due to the primary contact, Nina Lin, at nina.lin@nist.gov. This procurement is essential for meeting project milestones by early FY26, and interested parties are encouraged to respond with detailed capabilities and specifications.