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Wavefront Sensing Under Unique Lighting Conditions

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Shack-Hartmann wavefront sensors prove critical in detecting light propagation properties of noncoherent light sources.

JOHANNES PFUND, RALF DORN and CHRISTIAN BROCK, OPTOCRAFT GmbH

While the invention of the general principle of Hartmann wavefront sensing goes back to the beginning of the 20th century1, the advent of industrial cameras and micro lenses in the 1970s facilitated broader applications2. Nowadays, Shack-Hartmann wavefront sensors (SHWFSs) have made their way into numerous applications in R&D, medicine and manufacturing. Certain applications, however, require light sources with unique coherence or phase distribution properties. LEDs have an interesting degree of partial temporal and spatial coherence but are difficult to use with interferometric...Read full article

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