To examine the effects of nonlocal thermoelastic parameters in a nanoscale semiconductor material, novel model with variable thermal conductivity is provided this study. The photothermal diffusion (PTD) processes chemical action are utilized framework governing equations. When elastic, thermal, and plasma waves interact, continuum theory used to create model. For main formulations get analytica...

The photothermal deflection technique, also known as "mirage effect", is a nondestructive method of evaluating thermal properties of solid, liquid or gaseous species. This technique will be used to detect pollutant absorption. As the deflection is stronger in liquids than gases, we will first consider the deflection in paraffin oil. We consider a medium that is heated by a modulated laser diode...

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The photothermal deflection technique is used to measure the thermal diffusivity of a metal+eramic composite. The present, as well as other data on composites are analyzed to estimate a value for the Kapitza radius, rk, which represents the effectivevalue of the thermal boundary resistance of heterointerfaces. Remarkably, the data from different metal+eramic composite materials lead to a simila...

A photothermal deflection experiment with a variable angle pump beam is presented. It is shown that directional absorptivity of rough or corrugated opaque samples can be measured by this technique. As an illustration the absorptivity in p an s polarization of a 2D surface-relief silicon grating is studied. Grating anomalies are detected and qualitatively discussed in the framework of an electro...