Influence of non-irradiated surface optical absorber on temperature gradient induced by photothermal effect in a thin film

This paper presents the model of surface temperature variations, resulting from photothermal effect induced in a ?thin film ? highly absorbing layer? structure, where thin is irradiated. The influence optical absorption coefficient and sample thickness on gradient analyzed. It shown that, depending product these parameters (optical absorbance) described phenomenon inverse can occur, further influencing direction magnitude thermoelastic displacement.