Dependence on liquid temperature and purity of light emission characteristics in single cavitation bubble luminescence

M. O. BARBAGLIA, F. J. BONETTO

JOURNAL OF APPLIED PHYSICS

AMER INST PHYSICS

Año: 2004 vol. 95 p. 1756 - 1759

0021-8979

We produced single bubbles in water using a visible pulsed laser and studied the characteristics of the light emitted during the bubble collapse time as a function of the water temperature for different water purity values. The water temperature ranged from freezing point (0 °C) to near boiling. We measured the luminescence pulse for the mentioned temperature range at various purity values. We also obtained the average bubble lifetime and the average luminescence pulse emitted as a function of water temperature. The main conclusion was that the luminescence can be modified by the water quality and by the water temperature. Maximum luminescence was obtained near the water freezing point.