Polarization is a very important concept in optics. Many optoelectronic instruments, e.g. liquid crystal display (LCD), work by modifying the polarization of the transmitted or reflected light. It is a also an important property in some optical light sources, such as lasers.

These applets are designed to help students to visualize the polarization of light, as well as simulating polarizer, and an optical modulator built with polarizers and a halfwave plate.

Please select one of the Applets below for Polarization:

Polarization v. 2.0 
Right Hand Circularly Polarized Light
Left Hand Circularly Polarized Light
Halfwave Plate Polarization Modulator