Gurin OV, Degtyarev AV, Dubinin MM, Maslov VA, Muntean KI, Ryabykh VM, Svystunov OO, Senyuta V. Selection and focusing of higher-order modes in a CW waveguide terahertz laser. radiophysics [Internet]. 2022Jun.28 [cited 2026May30];(36):74-6. Available from: https://periodicals.karazin.ua/radiophysics/article/view/21123