The Measurements Of Angular Correlations In Sonoluminescence

The mechanism of sonoluminescence (SL) is one of the most focus problems in the last ten years in the scientific community. Because the parameters of SL can not be directly measured, we do not know the mechanism of SL. So we have to use indirect way to study it. This thesis introduces the research history of sonoluminescence, the properties and equipments of single-bubble sonoluminescence(SBSL) and the factors affecting the amount of light emission. Based on the experimental realization of SBSL, the experiment in this thesis is to confirm the coherence between the emitting frequency and the driving cycle of SL. Under this feature ,we established the programme of the experiment that measure the angular correlations in SBSL , built the experimental devices and conducted initial measurements .Then we got the conclusion that there is a presence of non-spherical symmetry in the process of SBSL . This will be the preliminary preparations for the detailed study of the bubble shape in SBSL. Furthermore ,this conclusion may be proved a useful to attempts to reach higher levels of energy concentration in SBSL and possibly learn about the light emitting mechanism.