FIELD: investigating or analyzing of materials.
SUBSTANCE: method comprises irradiating a thin layer of a liquid sample to be investigated by laser pulse which is adsorbed by the layer or substrate. The properties of the liquid can be judged by characteristic features of the development and relaxation of the thermocapillary convection which is observed with the use of low-power laser beam in the visible range.
EFFECT: enhanced reliability of investigating.
2 dwg
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