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Instrumental Polarization of a Beam Scanner

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animation
wavelength, nm
λ
1550
orientation of initial state of polarization
γ
0.
rotation angle of quarter waveplate
θ
0
mirror type
protected gold
beam scanner with one or two mirrors
azimuth-only
azimuth angle
α
30
elevation angle
β
0
viewpoint
Fresnel amplitude coefficients of reflection
r
p
= 0.621+0.752
r
s
= 0.154+0.962
state of polarization
This Demonstration shows the induced changes in the state of polarization (SOP) of the incident beam upon reflection off mirrors in a beam scanner. The Fresnel coefficients are calculated along with the SOP for three common mirror coatings at three different wavelengths. You can vary the incident polarization and the orientation of the mirrors and observe the effect on the SOP in three dimensions in real time.
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