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polarization

doggy

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now i know you can polarize light with a type of lens and reflect it back using brewster, but is there a way to "flip" the polarization of the photons so that on their next cycle they ARE polarized properly to flow through the original lens?
 

ARG

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A wave plate will adjust the polarization, or you can use mirrors to flip the beam and change the polarization.

Stanwax Lasers sells cheap 1/2 wave plates.
 
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doggy

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how would the mirror method work? is there a diagram for the angles to do a horizontal to vertical flip?
 




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