WATER TEMPERATURE-DEPENDENCE OF SINGLE BUBBLE SONOLUMINESCENCE

The strong dependence of the intensity of single bubble sonoluminescen ce (SBSL) on water temperature observed in experiment can be accounted for by the temperature dependence of the material constants of water, most essentially of the viscosity, of the argon solubility in water, and of the vapor pressure. The strong increase of light emission at lo w water temperatures is due to the possibility of applying higher driv ing pressures, caused by increased bubble stability. The presented cal culations combine the Rayleigh-Plesset equation based hydrodynamical/c hemical approach to SBSL and full gas dynamical calculations of the bu bble's interior.