The Pentagon's advanced research arm aims to hold a proposers' day this month for a program seeking to help address a capability gap due to optical technologies that are typically "prohibitively large, expensive, heavy and slow for defense applications," according to a new notice. According to a Dec. 4 notice on the Federal Business Opportunities website, the Defense Advanced Research Projects Agency seeks interested contractors to attend a proposers' day on Dec. 17 on the Modular Optical Aperture Building Blocks...