Abstract
A setup for the generation of arbitrary vector beams is proposed.
The setup mainly consists of a spatial light modulator (SLM), an
angle-adjustable polarization beam splitter modulator, and a spatial
filtering imaging system. Compared with the system using a birefringent
beam splitter with a non-adjustable splitting angle, the polarization
splitting angle of the improved setup can be adjusted by slightly rotating
the related mirrors, which will bring more convenience when different
wavelengths and different pixel sizes of SLMs are involved. The
experimental results also demonstrate that the setup possesses a good
polarization-selective imaging ability, which reveals that the setup may
also be useful in polarization-selective spatial filtering imaging and
polarization-encoded encryption.
© 2016 Chinese Laser Press
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