The effect of water preparation on sonoluminescence was studied. Single and multiple bubble sonoluminescence was observed within a narrow range of conditions. Water temperature and dissolved gas content were found to be most significant to the formation of sonoluminescent bubbles.
Sonoluminescence (SL) occurs when a bubble, driven by ultrasound, collapses to a very small radius. This phenomenon can occur in a resonant cavity, with a trapped bubble as is the case in Single Bubble Sonoluminescence (SBSL), or with a large driving amplitude and free floating or cavitation bubbles as observed in Multiple Bubble Sonoluminescence (MBSL).