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Imaging Applications Optical Vortices

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Abstract

Advancements and reviews of imaging and instrumentation applications of optical vortices will be described. Applications include astronomy (coronagraphy for exoplanet imaging), radiation protection (PSF engineering for laser suppression), scatterometry (complete angular spectrum measurements for particle sizing), and methods of determining the degree of spatial coherence. An optical vortex phase element may be placed in a pupil plane or focal plane to benefit from the Fourier transform properties of the “twisted light”. Advanced optical devices may benefit from the additional use of deconvolution schemes to augment the spatial filtering properties of vortex-modified beams. Furthermore, Gerschberg-Saxon type iterative algorithms also provide a means to design higher order phase elements for imaging applications of complex light.

© 2016 Optical Society of America

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