Optical fiber-based homogeneous illumination system for microscopy applications
Josue A. Perales-Hernandez,
Jose L. Garcia-Cordero,
Jose R. Guzman-Sepulveda
Abstract:We have engineered an optical fiber-based system for homogeneous laser
illumination and tested it on a home-built 3D-printed microscope in
reflection mode. The sample is illuminated using an array of multimode
fibers (MMFs) strategically positioned around a custom-made objective
lens. Homogeneous illumination is achieved through the superposition
of dynamic speckle patterns emerging from the illuminating MMFs that
accumulate over the camera’s exposure time. Time-varying speckle
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