OICC Press Journal of Solid Mechanics 2008-7683 4 2 2012 06 30 Wave Propagation in Micropolar Thermoelastic Diffusion Medium 195 208 EN A Miglani Department of Mathematics, C.D.L.University, Sirsa-Haryana ,India S Kaushal Department of Mathematics, Maharishi Markandeshwar University, Mullana-Ambala (Haryana), Journal Article 2012 06 30 The present investigation is concerned with the reflection of plane waves from a free surface of a micropolar thermoelastic diffusion half space in the context of coupled theory of thermoelastic diffusion. The amplitude ratios of various reflected waves are obtained in a closed form. The dependence of these amplitude ratios with an angle of propagation as well as other material parameter are shown graphically. Effects of micropolarity and diffusion are observed on these amplitude ratios. Some special cases of interest are also deduced from the present investigation.