Exploring the Temperature-Dependent Goos-Hänchen Shift on a Metal Surface

The temperature-dependent Goos-H¨anchen shift for the air-metal interface is explored in detail.We have described the initial observation of Goos-H¨anchen shift for an electromagnetic wave thrown back from the air-metal interface, when the shift becomes a function of temperature due to the optical properties of the metal which depend upon temperature [1]. We have considered both transverse electric and magnetic modes in this study. We have taken on the Drude model to perform the analysis of temperature-dependent Goos-H¨anchen shift [2]. The collision or damping frequency of the metal is found through Holstein’s and Lawrence’s results [3]. This study shows the remarkable value of Goos-Hänchen shift which can further lead us to build temperature-monitoring optical sensors [4].