Research of negative refractive direction of P-light in metal

Abstract This paper studies the light propagation in metal. Using the complex wave vector, we analyze the propagation direction of light energy in a metal, and find that P and S -polarized light propagate at a different refraction angle when a beam of light passes from the air to a metallic boundary at a certain angle. Especially, P -polarized light will be refracted at a negative angle, and the direction of P -polarized light is the same side of the incident light.