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One-shot reflectance direction field imaging for measuring the surface slope distribution of a capillary wave
Applied Optics
|September 14, 2023
Abstract:
A method for measuring a surface slope distribution of a capillary wave is proposed. The method uses an optical imaging system that can capture a one-shot image of a light-reflectance direction field in a two-dimensional image plane. A dispersion relation between the wavelength and frequency of the capillary wave is shown to be obtainable by the imaging system, which agrees well with the theoretical prediction.

