Abstract
The intensities of single bubble sonoluminescence at several ambient temperatures are computed, based on three well-known light emission mechanisms, namely, electron–neutral-atom bremsstrahlung, electron–ion bremsstrahlung and recombination radiation using a spatially uniform pressure approximation. These computed values are much smaller than the experimental data obtained by Vazquez and Putterman in 2000. The theoretical results concluded in this paper are also compared with those obtained by some previous researchers and the accuracy of the uniform-pressure approximation is then discussed. It is concluded that the three light emission mechanisms are insufficient in providing the experimentally observed light intensities.
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