文章摘要
钱梦騄,彭若龙.单泡声致发光现象——气泡的稳定性[J].声学技术,2003,(2):130~135
单泡声致发光现象——气泡的稳定性
Phenomenon of single bubble sonoluminescence and its stability
投稿时间:2003-03-03  修订日期:2003-05-04
DOI:
中文关键词: 单泡声致发光  形状稳定性  扩散平衡  分解假设。
英文关键词: single bubble sonoluminescence  shape stability  diffusive equilibrium  dissociation hypothesis
基金项目:国家自然科学基金(19934001);教育部博士点(2000年024706)基金
作者单位
钱梦騄 上海同济大学声学所, 上海, 200092 
彭若龙 上海同济大学声学所, 上海, 200092 
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中文摘要:
      被水中驻波声压捕获在声压波腹的单个气泡,能周期地发出宽度50ps~140ps的光脉冲,这种现象称为单泡声致发光。稳定的单泡声致发光的参数主要由振荡形状稳定性、质量扩散平衡、组分的化学平衡和高的能量集聚等条件确定。文章将根据上述四条件对气泡的动力学稳定性作简单讨论。
英文摘要:
      A single bubble trapped at the antinode of an acoustic standing wave field in water can emit 50ps~140ps light pulses. This is called "single bubble sonoluminescence"(SBSL). The parameter space of a stable SBSL is mainly determined by stable shape oscillation, diffusive equilibrium of mass, chemical equilibrium of components, and high energy focusing in its interior. Based on these four conditions, the dynamic stability of the bubble is briefly discussed in this paper.
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