| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Temperature and Pressure inside Sonoluminescencing Bubbles Based on Asymmetric Overlapping Sodium Doublet |
| Tai-Yang Zhao, Wei-Zhong Chen**, Sheng-De Liang, Xun Wang, Qi Wang |
Key Laboratory of Modern Acoustics (Ministry of Education), Institute of Acoustics, Nanjing University, Nanjing 210093
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| Cite this article: |
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Tai-Yang Zhao, Wei-Zhong Chen, Sheng-De Liang et al 2017 Chin. Phys. Lett. 34 064301 |
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Abstract We experimentally measure the sodium $D$-lines from the multibubble sonoluminescence in sodium hydroxide aqueous solution. The asymmetric overlapping $D$-lines are successfully decomposed based on the Fourier transform analysis. The line broadening of the decomposed sodium $D$-lines shows the effective temperature of 3600–4500 K and the pressure of 560–1000 atm during sonoluminescence.
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Received: 17 March 2017
Published: 23 May 2017
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| PACS: |
43.35.+d
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(Ultrasonics, quantum acoustics, and physical effects of sound)
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44.05.+e
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(Analytical and numerical techniques)
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43.25.+y
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(Nonlinear acoustics)
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78.20.hb
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(Piezo-optical, elasto-optical, acousto-optical, and photoelastic effects)
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| Fund: Supported by the National Natural Science Foundation of China under Grant Nos 11334005 and 11574150. |
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