polarized light and refraction!!! Hi guys I need to discuss the polarized light in the waveguide and its refraction at an interface between two different media. if the light is polarized like in the picture(see attached) and oscillating only up and down (linear polarization), then does the light will be refracted at the interface or not? my idea is that although the interface is tilted, the angle between electric field and the interface is normal, then no refraction. I will appreciate if somebody is interested in this problem.