Abstract
We demonstrate the simultaneous use of the volume attenuation coefficient of a liquid acting upon a laser beam traversing the bulk liquid and the refraction of the beam as it traverses the air-liquid interface to obtain collocated and simultaneous measurements of surface elevation and slope at a point. Using optical imaging techniques for the one-dimensional case, real-time surface height profiles can be captured from which wave amplitude spectra are directly obtained. An example of the point measurement of elevation and slope of a water surface is shown in Fig. 1. Examples of the 1-D measurements of captured surface height profiles and their corresponding spectra are shown in Figs. 2 and 3.
© 1994 Optical Society of America
PDF ArticleMore Like This
Mark Seaver, A. E. Frost, and M. D. Duncan
WA.3 Laser Applications to Chemical Analysis (LACSEA) 1994
A. Laubereau and K. Wolfrum
TuC.1 International Conference on Ultrafast Phenomena (UP) 1994
Oguz Yavas, Paul Leiderer, Hee K. Park, Costas P. Grigoropoulos, Chie C. Poori, and Andrew C. Tam
CFI6 Conference on Lasers and Electro-Optics (CLEO:S&I) 1994