The light pulses and the spectra of conical bubbles sonoluminescence

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Abstract
Based on the original design of T.G.Leighton's conical bubble U_tube，an improve d apparatus is set up. The light pulses and spectra of air bubbles in water are detected. Results show that the width of a light pulse ranges from a few of hun dred picoseconds to a few nanoseconds. The vibrational spectra of water molecule s in the near_infrared have been obtained，and its intensity increases toward th e infrared. The spectra of conical bubble in NaCl solution is also detected.

Keywords:
sonoluminescence /

conical bubble /

light pulse /

spectra
Authors and contacts
He Shou-Jie²,

Chen Qi-Dai⁴,

Li Xue-Chen¹,

Ai Xi-Cheng³,

Zhang Jian-Ping³,

Wang Long⁴

(1)河北大学物理科学技术学院, 保定 071002; (2)河北大学物理科学技术学院, 保定 071002;中国科学院物理研究所, 北京 100080; (3)中国科学院化学研究所, 北京 100080; (4)中国科学院物理研究所, 北京 100080
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