Temperature Dependent Laser Beam Shifts at Reflection from Gold Nanoparticles

Metal nanoparticles are widely researched for the fabrication of novel low cost and more energy efficient optoelectronic devices. In this paper, Goos-Hanchen and Imbert-Fedorov reflection shifts of an oblique linearly polarized laser beam reflected from a mirror composed of gold nanoparticles are investigated theoretically. It is shown that the beam light can contribute both spatial and angular shifts depending on its state of polarity. Dependence of the light deviations to the temperature is also studied. Reflection deviation decreases linearly at higher temperatures and is not sensitive to the angle of incidence.