Temporally stabilized sonoluminescence in ethylene glycol

F. B. Seeley, D. Gregory, S. Thompson, Jeremiah D. Brown
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引用次数: 2

Abstract

The emission of light flashes from sound driven bubbles in ethylene glycol at 20–23 °C has been temporally stabilized. The intensity of the light flashes is approximately twice that of SBSL in degassed water at 20 °C. The time jitter is less than 100 ns and the flashes spatially jitter less than 2 mm around stable positions near the pressure antinode of the second harmonic. The light flashes trace out periodic, continuous orbits within this small region. Sonoluminescence in ethylene glycol is relatively stable with temporally stabilized SBSL bubbles lasting up to 60 min.
乙二醇中暂时稳定的声致发光
在20-23℃条件下,由声音驱动的气泡在乙二醇中发出的闪光已暂时稳定下来。闪光强度约为20°C脱气水中SBSL的两倍。在二次谐波压力反极附近的稳定位置,时间抖动小于100ns,空间抖动小于2mm。这些闪光在这个小区域内划出了周期的、连续的轨道。声致发光在乙二醇中相对稳定,暂时稳定的SBSL气泡持续长达60分钟。
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