Sources for Ultraviolet Nuclear Spectroscopy of Thorium (SUNSPOT)

The Defense Advanced Research Projects Agency (DARPA) is soliciting innovative proposals in the development of highly coherent sources of vacuum ultraviolet (VUV) radiation for clock-grade spectroscopy of the recently discovered thorium (229m-Th) nuclear isomeric transition. Proposed research should investigate innovative approaches that enable revolutionary advances in science, devices, or systems. Specifically excluded is research that primarily results in evolutionary improvements to the existing state of practice.