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Proceedings Paper

One-shot measurement of the air-liquid interface effect by a spectral-domain low-coherence dynamic light scattering technique
Author(s): T. Watarai; T. Iwai
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Paper Abstract

The Brownian motion of particles close to the interface between air and liquid is investigated using the one-shot measurement of temporal autocorrelation functions as a function of the distance from the interface by using a spectraldomain low-coherence dynamic light scattering. The technique is based on the principle of spectral-domain optical coherence tomography combined with that of dynamic light scattering. It is experimentally found that Brownian motion is suppressed in the region close to the air-liquid interface, but increases consistently with distance from the liquid surface, until free Brownian motion occurs. The results confirm the potential of the proposed technique for metrological applications.

Paper Details

Date Published: 19 September 2013
PDF: 6 pages
Proc. SPIE 8839, Dimensional Optical Metrology and Inspection for Practical Applications II, 88390H (19 September 2013); doi: 10.1117/12.2023004
Show Author Affiliations
T. Watarai, Tokyo Univ. of Agriculture and Technology (Japan)
T. Iwai, Tokyo Univ. of Agriculture and Technology (Japan)

Published in SPIE Proceedings Vol. 8839:
Dimensional Optical Metrology and Inspection for Practical Applications II
Kevin G. Harding; Peisen S. Huang; Toru Yoshizawa, Editor(s)

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