The Department of Defense, specifically the United States Air Force, is seeking proposals for the Small Business Innovation Research (SBIR) program focused on developing Cold Field Emitter Arrays for High Power Microwave (HPM) applications. The objective is to establish modular field emitter arrays that can generate electron beams as a viable alternative to traditional thermionic and explosive cold emitting cathodes, emphasizing consistent performance and scalability for high current outputs. This technology is critical for advancing directed energy capabilities, and proposals must adhere to strict export control regulations due to the sensitive nature of the technical data involved. Interested parties should note that the solicitation is open from May 7, 2025, to June 25, 2025, with further details available at the provided source link.