Abstract

A transmissive kinoform with 64 phase levels is demonstrated that is used as a beam array generator. This kinoform converts a single beam to a 5 × 5 beam array. The measured diffraction efficiency is 75.56%, near the designed value of 79.68%. The measured intensity difference among the different diffraction orders of the 5 × 5 beam array is 21.56%, and the designed value is 10.99%. The total aperture of the kinoform is 10 mm × 10 mm.

© 1992 Optical Society of America

Binary surface-relief gratings for array illumination in digital optics

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