TY CONF TI EXPERIMENTAL STUDIES OF A SUPERSONIC JET IN THE LAMINAR-TURBULENT TRANSITION SECTION AND IN THE AREA OF CLOSURE OF INTERNAL AND EXTERNAL MIXING ZONES KW supersonic jet KW laser beam KW turbulence JO The XXXI International Symposium "Atmospheric and Ocean Optics. Atmospheric Physics" AU Marakasov, D.A. AU Suharev, A.A. AU Cvyk, R.S. PY 2025 PB V.E. Zuev Institute of Atmospheric Optics, Siberian Branch of the Russian Academy of Sciences