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Effect of Wavelength.avi (9.52 MB)

Effect of Wavelength.avi

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posted on 2017-10-24, 21:03 authored by Afsoon Jamali, Doug Bryant, Yanli Zhang, Anders Grunnet-Jepsen, Achintya Bhowmik, Philip Bos
This video demonstrates the expected wavelength dependency of the Fresnel segments. The largest diffraction angle results at wavelengths that cause the Fresnel segments to be different by phase difference of a half wave. In our design we have chosen the minimum size of the Fresnel segments sufficiently large that the diffraction angle at worse case is likely unobservable by human eye.

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