Yurchenko, V. and Ciydem, M. and Gradziel, Marcin and Murphy, J.Anthony and Altintas, A.
(2014)
Double-sided split-step MM-wave Fresnel lenses: Design, fabrication and focal field measurements.
Journal of the European Optical Society - Rapid Publications, 9 (14007).
ISSN 1990-2573
Abstract
Design, fabrication and focal field measurements of W-band Fresnel lenses to produce well-shaped Gaussian beams in the focal domain are presented. Two lenses, one of Teflon and another of Polyamide, have been compared in their performance with a double-sided Fresnel lens of different design, with full height of Fresnel steps. Experiments show that a good focusing ability of all the lenses is achieved. They produce the target beam according to the design. Yet, the lenses of split-step design are thinner, have lower insertion losses, and a greater focal depth as compared to more conventional Fresnel lenses.
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