TY CONF TI FORMATION OF A “PERFECT” OPTICAL VORTEX USING A BESSEL-GAUSSIAN BEAM KW optical vortex KW Bessel-Gaussian optical beam KW topological charge JO The XXXI International Symposium "Atmospheric and Ocean Optics. Atmospheric Physics" AU Lukin, I.P. PY 2025 PB V.E. Zuev Institute of Atmospheric Optics, Siberian Branch of the Russian Academy of Sciences