Task: Text Categorization
Input (English): Malus's Law gives the intensity of a light ray after it is subjected to this process. This process is often performed in commercial products through the use of dichroic materials, and commonly comes in circular and linear types. It also occurs by reflection when the incident light ray comes in at Brewster's angle. For 10 points, name this process by which a light ray's waves are made to oscillate in only one direction, which is commonly done using Polaroid filters.
Output (English): Science