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Showing 1 to 2 of 2 for “"Photothermal spectroscopy"”.
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Application of surface thermal lens technology combined with polarization to the study of polymers
… the characteristics of polymers by using photothermal technology. The Surface Thermal Lens (STL) technique was employed to study polymers because of its higher spatial resolution and greater sensitivity than the classical photothermal detection techniques (PDT). Zeonex …
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Laser surface thermal lensing (STL): An optical method for surface analysis of glass transition effects in transparent polymers
<p>Absorption of energy from a modulated laser beam by a transparent substrate leads to cyclic thermal expansion and contraction of the surface at the pump beam focus. This minute distortion of the surface forms a transient optical lens structure, which can be monitored by the changes it induces in …