Laser-induced boiling of subcooled liquid: influence of the radiation power on the vapor bubble nucleation and growth. (March 2022) - Chernov, A.A.
Highlights: Laser-induced boiling of subcooled liquid near the end-face of an optical fiber. Influence of the radiation power and the initial liquid temperature on the vapor bubble's nucleation and growth. Generation of a hot submerged jet during the collapse of a vapor bubble. Physical aspects of minimally invasive laser surgery. Abstract: This paper presents the results of an experimental study of the effect of laser radiation power on the growth and collapse dynamics of vapor bubbles formed near the end-face of an optical fiber through which the radiation is transmitted into the liquid. It is shown that this influence is insignificant in the power range from 3 to 10 W. We propose a hypothesis that this effect is due to the fact that experiments with different radiation power have bubbles occurring and growing under similar temperature conditions. Our proposition has been confirmed by numerical simulations.