A mirror with a peephole
Wednesday, August 13, 2014 - 07:00
in Physics & Chemistry
When light shines through air onto water, some of the light usually will be reflected back into the air. But at one specific angle, called the Brewster angle, all of the p-polarized light travels into the water with no reflection. MIT graduate student Yichen Shen found a way to manipulate that Brewster angle in a specially designed photonic crystal mirror, achieving control over the light by controlling its angle of travel into a material.