Fig. 4.

Optical characterization of liquid sheets. The thickness of a liquid sheet is measured by spectral reflectance, as described in the text, and plotted in a as a function of position along the sheet, starting at the far left arrow in b. The error bars in a represent the 10 μm sampling size of the measurement. The color bar above the image in b is a simulation of the observed reflected color for water films, as a function of thickness, as described in the text. Arrows indicate the corresponding fringes on the liquid sheet, in agreement with the spectral reflectance measurements of a. The scale bar in a is 50 μm