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Erschienen in:
1996 | OriginalPaper | Buchkapitel
Examination of the Rainbow Position of Optically Levitated Droplets for the Determination of Evaporation Rates of Droplets
verfasst von : N. Roth, K. Anders, A. Frohn
Erschienen in: Developments in Laser Techniques and Applications to Fluid Mechanics
Verlag: Springer Berlin Heidelberg
Enthalten in: Professional Book Archive
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In the present paper theoretical and experimental studies of the radiation pressure and of the intensity distribution in the rainbow region are presented. It has been shown that both radiation pressure and rainbow position show an oscillatory behaviour in their dependence on droplet radius. This property has been used to detect changes in radius of optically levitated droplets. From the theoretical calculations it follows that the period of these oscillations is practically independent of size and refractive index for a wide range of both quantities. Furthermore, it could be shown theoretically and experimentally that the oscillations of radiation pressure and rainbow position are strongly correlated and have the same period.