Cosmic Visions Dark Energy: Technology
  A strong instrumentation and detector R&D program has enabled the current generation of cosmic frontier surveys. A small investment in R&D will continue to pay dividends and enable new probes to investigate the accelerated expansion of the universe. Instrumentation and detector R&D provide critical training opportunities for future generations of experimentalists, skills that are important across the entire Department of Energy High Energy Physics program. 
Scott Dodelson, Katrin Heitmann, Chris Hirata, Klaus Honscheid, Aaron   Roodman, Uro\v{s} Seljak, An\v{z}e Slosar, Mark Trodden
astro-ph.IM astro-ph.CO