乙二醇溶液中圆锥泡声致发光的发光特性

利用一种改进后的U形管圆锥泡声致发光装置，研究了乙二醇溶液中圆锥泡声致发光的发光特性.实验结果表明，利用乙二醇溶液可以得到超强的单个发光脉冲，其脉冲宽度可以达到150 μs，其值远远高于其他方式产生的声致发光的脉冲宽度.测量得到的光谱为一从紫外到可见光波长范围的连续谱，在589 nm附近叠加有钠的3P-3S原子发射谱线.在钠的原子发射谱线两侧测量得到了Na-Ar分子激发态跃迁形成的蓝卫星带，并在声致发光实验中测得了Na-Ar的红卫星带以及钠的3S-4S原子发射谱线. 关键词： 圆锥泡声致发光 光脉冲 光谱 卫星带

The optical properties of conical bubble sonoluminescence in glycol

Using an improved conical bubble U tube, the optical properties of conical bubble sonoluminescence in glycol are measured. A strong single flash is observed and the width of light pulse reaches 150 us, which is much higher than that of the results obtained by other methods. The spectrum is a continuum ranging from ultraviolet to visible region, superposed with the spectral line of the 3P-3S transition of sodium around 589 nm. The blue satellite bands of Na-Ar has been measured on the sides of atomic spectral line; the red satellite band of Na-Ar and the 3S-4S atomic spectral line of Na are firstly measured in sonoluminescence.