Reflective diffraction grating operating around 3,3 THz for space applications - García-Lozano, G; Mercant, G; Fernández-Rodríguez, M; Torquemada, MC; González, LM; Belenguer, T; Cuadrado, A; Sánchez-Brea, LM; Alda, J (Proceedings Of Spie - The International Society For Optical Engineering, 2024)