LAUSR

Abstract Glow has been studied that emerges during the single- and multibubble sonolysis in solutions of organic phosphors, namely aromatic molecules of p-terphenyl, anthracene, 9,10-diphenylanthracene, in toluene and dodecane. It was shown that the existence luminescence of these molecules by the previously unknown for organic phosphors mechanism of collisional excitation due to the deformation-injection penetration of phosphors into moving cavitation bubbles and subsequent inelastic collisions with hot particles formed in the plasma of bubbles. This mechanism of phosphors excitation can be the only one (p-terphenyl) or work in combination with the mechanism of trivial re-emission of light by phosphors (anthracene, 9,10-diphenylanthracene) of absorbed by them in the solution of part of continuum own luminescence of the bubbles. In the second case the contributions of these two mechanisms into the total intensity of ultrasound-induced luminescence of phosphors are quite comparable.