This article describes how to model evanescent field effects like frustrated total internal reflection in OpticStudio. This is useful in applications like fingerprint scanners.
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Keywords: Polarization and Thin Film Coatings, Frustrated total internal reflection, TIR, FTIR, Non sequential ray tracing, Taper coating, TAPR, Wedged airgap, Curved airgap, Radial, Linear, Two blocks touching
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