Gurin O, Degtyarev A, Dubinin MM, Maslov V, Muntean KI, Ryabykh VM, Svystunov OO, Senyuta V. Sharp and moderate focusing of the combined modes of a terahertz laser. radiophysics [Internet]. 2023Jun.27 [cited 2026May7];(38):7-15. Available from: https://periodicals.karazin.ua/radiophysics/article/view/23672