Charles L. Joseph, PhD, is a retired research professor from the Department of Physics and Astronomy at the Rutgers University, who specialized in technology development for NASA flight missions. Prof. Joseph has more than 30 years experience working closely with aerospace and electro-optical companies as well as government laboratories, taking technologies from experimental breadboard devices to ruggedized ... Read moreinstruments suitable for NASA missions. He was a co-investigator and the detector scientist on STIS, a second-generation instrument for the Hubble Space Telescope. Santiago Bernal, PhD, is an associated research scientist at the Institute for Research in Electronics and Applied Physics (IREAP) at the University of Maryland. Dr. Bernal received his B.S. in physics from the National University of Colombia in 1981. He joined the IREAP in 2000 and has since been the leading experimentalist on the University of Maryland Electron Ring. Show Less