Abstract
We measured small optical beam deflection in an image rotating Sagnac interferometer. We
used a weak value measurement scheme that involves a pre-selection, weak perturbation, and a
post-selection procedure to obtain the amplified value of beam deflection. The amplification factor
of the measured beam deflection varied from 11 to 63 depending on the settings of the post-selection
polarizer in front of the photodetector and the settings of polarization compensator in the
interferometer.
© 2012 Optical Society of Korea
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