Abstract: Sonoluminescence, the transduction of sound into light, is driven by the pulsations of a gas bubble surrounded by a fluid. Although this phenomenon is very sensitive to many physical parameters such as sound frequency, fluid gas, and partial pressures of solution, it nevertheless exists in a wide parameter space. This thesis reports the expansion of parameter space to include sonoluminescence driven by the focus of a 10 MHz sound field, and single bubble pulsating synchronously at 1 MHz. Information on the light emitting region is obtained by comparing measured spectra to blackbody and Bremsstrahlung models of radiation from hot plasmas. At 1 MHz the radiation is best fit by Bremsstrahlung radiation from a transparent 500,000 °K ionized plasma. Use of light scattering to measure the radius of bubbles in sulfuric acid indicates that they are blackbodies with surface temperatures of about 10,000 °K. Measurement of the dynamics of these bubbles show relatively weak implosions and strong dependence on thresholds. Although sonoluminescence has been studied for many years there is no independent measurement of the size of the light emitting region. A technique based upon intensity interferometry is applied to SL and is described in detail.