An optically thin resonator suspended over a substrate and illuminated with a laser forms an interference field that couples deflection of the resonator to absorption within it. For high enough laser powers, such resonators have been shown to be interferometrically transduced to stable oscillations due to the feedback between heating and deflection. The coupling between thermal stresses, deflec...

In this study, nanofluids of Chromium (Cr) in water, Ethylene Glycol and Ethanol have been prepared using single step method. The thermal conductivity and diffusivity of these nanofluids were measured via hot wire-photothermal deflection technique. Based on finite difference method (FDM) temperature distribution and photothermal deflection caused by the hot wire inside nanofluids was obtained. ...

mirage effect is contactless and non destructive method which has been used a lot to determine thermal properties of different  kind of samples , transverse photothermal deflection ptd in  skimming configuration with ccd camera  and special programs is used to determine thermal conductivity of porous silicon ps  film. ps samples were prepared by electrochemical etching. thermal conductivity wit...

Performances of four related techniques i.e., photoacoustic spectroscopy, photothermal deflection, thermal lensing, and photothermal phase shift spectroscopy have been compared to the conventional beam transmittance spectrophotometry. This concerns to the analytical potential in studies of environmental pollutants. Solutions of pesticides in water are used as specimens in this study. Spectropho...

The theory for a sensitive spectroscopy based on the photothermal deflection of a laser beam is developed. We consider cw and pulsed cases of both transverse and collinear photothermal deflection spectroscopy for solids, liquids, gases, and thin films. The predictions of the theory are experimentally verified, its implications for imaging and microscopy are given, and the sources of noise are a...

Mirage effect is contactless and non destructive method which has been used a lot to determine thermal properties of different  kind of samples , transverse photothermal deflection PTD in  skimming configuration with ccd camera  and special programs is used to determine thermal conductivity of porous silicon ps  film. Ps samples were prepared by electrochemical etching. Thermal conductivity wit...

Mirage effect is contactless and non destructive method which has been used a lot to determine thermal properties of different  kind of samples , transverse photothermal deflection PTD in  skimming configuration with ccd camera  and special programs is used to determine thermal conductivity of porous silicon ps  film. Ps samples were prepared by electrochemical etching. Thermal conductivity wit...

This paper deals with an analytical approach to predict the nonlinear buckling behavior of functionally graded graphene-reinforced composite laminated cylindrical shells under axial compressive load surrounded by Pasternak’s elastic foundation in a thermal environment. Piece-wise functionally graded graphene-reinforced, composite layers are sorted with different types of graphene distribution. ...

The Magneto-Electro-Elastic (MEE) material exhibits pyroelectric and pyromagnetic effects under thermal environment. The effects of such pyroelectric and pyromagnetic behavior on vibration, buckling and deflection analysis of partially cracked thin MEE plate is presented and discussed in this paper. The aim of the study is to develop an analytical model for the vibration and geometrically linea...

In the present work, the mathematical model of a homogeneous, isotropic thermoelastic double porous micro-beam, based on the Euler-Bernoulli theory is developed in the context of Lord-Shulman [1] theory of thermoelasticity. Laplace transform technique has been used to obtain the expressions for lateral deflection, axial stress, axial displacement, volume fraction field and temperature distribut...