Demos: 7B-23 Polarization by Reflection



White light is incident on pile of plates at an angle of approximately 57 degrees. Polarizers placed in the reflected beam and transmitted beam paths show that the two beams are polarized perpendicular to each other.

Directions: Use the diagram at the right as a reference. Each polarizer may be rotated to show the polarization.

Suggestions for Presentation: Since the stacked plates are at the Brewster angle, discuss with the students how the reflected beam will be polarized. What does that do to the transmitted beam?

Applications: Beam splitters (especially those used in CD players

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Last Updated: May 9, 2016 11:44 AM