The Department of Defense (DOD) 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 create modular field emitter arrays that can generate electron beams as a viable alternative to traditional thermionic and explosive cold emitting cathodes, with an emphasis on consistent performance, scalability, and durability. This technology is crucial for advancing directed energy capabilities, and proposals must demonstrate the ability to produce small-scale field emitting arrays with specific performance metrics, including current densities exceeding 1 Ampere per square centimeter and operational longevity. Interested parties should submit their proposals by May 21, 2025, with further details available at the provided source link.