Influence of dissolved gas on optical breakdown and small-angle scattering of light in liquids |
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| Institution: | 1. School of Material Science and Engineering, University of Jinan, Jinan 250022, China;2. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Science, Shanghai 200050, China;3. Shandong Industrial Ceramics Research & Design Institute Co., Ltd, Zibo 255000, China;4. School of Material Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;5. Shandong Green Polymer Materials Co. Ltd., Tai''an 271600, China |
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| Abstract: | It is demonstrated that the small-angle laser beam scattering pattern in liquid depends greatly on the dissolved gas content: the intensity of the scattering steeply drops after degassing doubly distilled water. It was experimentally found that the parameters or small-angle scattering of light correlate strongly with those of optical breakdown in liquid. Namely, the fractal dimension and the gyration radius of scatterers in aqueous KCl solutions behave similar to the optical breakdown probability in those liquids versus salt concentration, while the optical breakdown cannot be induced after degassing. The effect might be associated with the presence of stable gas microbubbles in liquid. |
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