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Single crystal birefringent lens interferometers: application to FINCH super resolution microscopy and other applications

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Abstract

Fresnel Incoherent Correlation Holography (FINCH) is a self-referenced holographic imaging technique that possesses the additional advantage of inherent super-resolution at up to twice the performance of classical methods. The key aspect of FINCH is its differentially-focusing polarization-based coincident beam splitting system. In order to achieve the maximum possible optical quality, it is necessary to avoid loss, aliasing and other quantization artifacts in hologram forming optics that have been previously used. Birefringent crystal inline interferometers are the first analog all optical lens devices that do not need electrical control that produce holograms which are free of quantization errors and other aberrations. A simple bifocal lens interferometer constructed from α-BBO birefringent crystal creates holograms in a FINCH configuration that produce super resolution microscopic images with optical clarity that is at least equivalent to and obtained faster than more complex structured illumination methods.

© 2017 Optical Society of America

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