This Hyperphysics page, from Georgia State University, describes how light behaves when passing through a pair of polarizers oriented perpendicular to each other. The website also gives an explanation of what happens when a third polarizer is added at a particular orientation between the two. Several photographs and drawings are included as well as links to related subjects for additional information.
%0 Electronic Source %A Nave, Carl Rod %D May 5, 2006 %T Crossed Polarizers %V 2014 %N 1 October 2014 %8 May 5, 2006 %9 text/html %U http://hyperphysics.phy-astr.gsu.edu/Hbase/phyopt/polcross.html#c1
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