Sensitivity limits of millimeter-wave photonic radiometers based on efficient electro-optic upconverters - Santamaria Botello, Gabriel Arturo; Sedlmeir, Florian; Rueda, Alfredo; Abdalmalak Dawoud, Kerlos Atia; Brown, Elliott R.; Leuchs, Gerd; Preu, Sascha; Segovia Vargas, Daniel; Strekalov, Dmitry V.; Garcia Muñoz, Luis Enrique; Schwefel, Harald G. L. (Optica, 2018)