Doppler Shift of Ripplon Spectrum Observed under Surface Flow : Instrumentation, measurement, and Fabrication Technology
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概要
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We observed the ripplon spectrum on the flowing liquid surface by the optical beating ripplon light scattering technique. The ripplon spectrum, which is composed of Stokes and anti-Stokes components, is expected to be asymmetric with respect to the center frequency due to the Doppler effect. In the observed spectrum, these two components have clearly different peak frequencies, and the difference agrees well with the value predicted from theoretical calculation. This technique can be applied to the noncontact measurement of the surface flow speed that provides important information on the dynamic adsorption phenomena of surfactant molecules. The sensitivity of the flow speed measurement was also discussed.
- 社団法人応用物理学会の論文
- 2001-03-01
著者
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Sakai Keiji
Institute Of Industrial Science University Of Tokyo
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Takagi Kenshiro
Institute Of Industrial Science University Of Tokyo
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Hosoda Maiko
Institute Of Industrial Science University Of Tokyo
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Takagi Kenshiro
Institute Of Industrial Science The University Of Tokyo
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