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Proceedings Paper

Analysis Of Transient Phenomena. In Laser-Irradiated Heavy Hydrocarbons: Applications In Petroleum. Physics.
Author(s): German Da Costa; Jose Calatroni
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Paper Abstract

Basic research on physical properties of laser-irradiated heavy hydrocarbons is being conducted in order to support technological research in this field. For low power-concentrations, laser-induced thermocapillary flow is the dominant phenomenon. Experimental results and the corresponding theory are presented. Temperature-dependence of the surface tension gives rise to the formation of a surface depression, whose shape is studied as a function of time. Direct photo graphs of the laser wave reflected from the deformed surface are actually holograms of the later. Reconstructed images are presented. For higher power concentrations evaporation of the sample takes place. A photographic sequence of this phenomenon (taken at 64 frames/sec) is presented.

Paper Details

Date Published: 27 July 1979
PDF: 4 pages
Proc. SPIE 0189, 13th Intl Congress on High Speed Photography and Photonics, (27 July 1979); doi: 10.1117/12.957669
Show Author Affiliations
German Da Costa, Universidad Simon Bolivar (Venezuela)
Jose Calatroni, Universidad Simon Bolivar (Venezuela)


Published in SPIE Proceedings Vol. 0189:
13th Intl Congress on High Speed Photography and Photonics
Shin-Ichi Hyodo, Editor(s)

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