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Single Bubble Sonoluminescence Driven by Biharmonic Ultrasound |
| LI Sheng-Qiong;CHEN Wei-Zhong;JIANG Li-An;ZHU Yi-Fei;WANG Chao |
| State Key Laboratory of Modern Acoustics and Institute of Acoustics, Nanjing University, Nanjing 210093 |
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| Cite this article: |
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LI Sheng-Qiong, CHEN Wei-Zhong, JIANG Li-An et al 2003 Chin. Phys. Lett. 20 2053-2055 |
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Abstract Based on the spectrum measurement, we have investigated the single bubble sonoluminescence (SBSL) driven by a biharmonic ultrasound. The spectral temperature is sensitive to the relative phase of the second harmonic with respect to the fundamental. At the optimal phase, about 160°, the SBSL reaches its most efficient state in which the temperature is lifted by over 10000 K. Our experimental results have also been reproduced by numerical calculation in the theoretical framework of Rayleigh bubble dynamics.
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| Keywords:
78.60.Mq
43.25.+y
42.65.Re
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Published: 01 November 2003
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| PACS: |
78.60.Mq
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(Sonoluminescence, triboluminescence)
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43.25.+y
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(Nonlinear acoustics)
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42.65.Re
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(Ultrafast processes; optical pulse generation and pulse compression)
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