Turning any camera into a polarization camera: Metasurface attachment can be used with almost any optical system, from machine vision cameras to telescopes

Researchers have developed a metasurface attachment that can turn just about any camera or imaging system, even off-the-shelf systems, into polarization cameras. The attachment uses a metasurface of subwavelength nanopillars to direct light based on its polarization and compiles an image that captures polarization at every pixel.