Improved scattering rejection in transmissometry using image-plane vortex phase masks.
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DOI: 10.1364/ao.539961
Abstract: We experimentally demonstrate a 14% improvement in the signal-to-background power ratio in a laser transmissometer by augmenting a pinhole spatial filter with a vortex phase mask and beam block combination. This study addresses the significant… read more here.
Keywords: improved scattering; optics; scattering rejection; transmissometry ... See more keywords