| 声光协同作用下金纳米颗粒表面空化泡的动力学研究 |
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| 引用本文： | 徐峥,许坚毅,刘晓峻.声光协同作用下金纳米颗粒表面空化泡的动力学研究[J].声学学报,2010,35(1):14-18. |
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| 作者姓名： | 徐峥 许坚毅 刘晓峻 |
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| 作者单位： | 近代声学教育部重点实验室 南京大学声学研究所 南京 210093 |
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| 摘 要： | 在激光和超声的协同作用下,金纳米颗粒表面会产生空化气泡。本文通过观察各种参数条件下空化泡的振荡变化,研究了激光光热、超声空化及其协同效应。研究发现,光热作用和激励声压的改变可以调节气泡的动力学过程,光热效应的增强有利于气泡的膨胀,激励声压的增加可以提高气泡运动的剧烈程度。两者的协同作用可以使气泡稳定存在并经历不同的振荡过程。此外,激光与超声协同方式的变化对气泡的运动过程有一定影响。
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| 关 键 词： | 动力学研究 空化泡 金纳米颗粒 协同作用 光热作用 空化气泡 超声空化 激光热效应 表面气泡 声压 |
| 收稿时间： | 2009-03-13 |
Dynamical process of cavitation bubble adsorbed in gold nanoparticle under combined irradiations of laser and ultrasound |
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| XU Zheng,XU Jianyi,LIU Xiaojun.Dynamical process of cavitation bubble adsorbed in gold nanoparticle under combined irradiations of laser and ultrasound[J].Acta Acustica,2010,35(1):14-18. |
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| Authors: | XU Zheng XU Jianyi LIU Xiaojun |
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| Institution: | Key Lab of Modern Acoustics of MOE and Institute of Acoustics, Nanjing University Nanjing 210093 |
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| Abstract: | Under combined irradiations of laser and ultrasound,cavitary bubbles are generated on the surface of gold nanoparticle.The laser-induced thermal effect,ultrasonic cavitation effect and the synergistic effect of laser and ultrasound are studied by means of the investigation of the dynamical process for the vibration of the cavitation bubble, with different external conditions such as laser power,ultrasound intensity,etc.It is found that dynamical process of the cavitation bubble can be modified by the irradi... |
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