Abstract
We report the results of our investigation on the viewing
angle characteristics of achromatic waveplates. In our investigation, both
Pancharatnam achromatic waveplate and Beckers achromatic waveplate are examined
theoretically. We find that only Beckers configuration is capable of functioning
as the achromatic waveplate over wide viewing angles and over the visible
spectrum. Two types of extremely wide-viewing-angle achromatic crossed polarizers
compensated by Beckers waveplates are obtained. The leakage of light is less
than
${{10}}^{-4}$
over a 50
$^{\circ}$
viewing cone for the visible spectrum. The results are presented
and discussed.
© 2013 IEEE
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