Spherical particle sizing by optical correlation using ternary phase-amplitude filters.


Computer simulations and experimental data are presented for various ternary phase-amplitude filters used to size opaque spherical particles. We first report on nearly unlimited spatial frequency ternary phase-amplitude filters derived directly from the classical matched filter for opaque spherical particles in the size range of 100 to 400 microm. Next we… (More)
DOI: 10.1364/AO.31.000644

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