Double-sided split-step MM-wave Fresnel lenses: design, fabrication and focal field measurements
Author
Yurchenko, V. B.
Ciydem, M.
Gradziel, M.
Murphy, J. A.
Altintas, A.
Date
2014-09Source Title
Journal of the European Optical Society
Print ISSN
1990-2573
Publisher
European Optical Society : Rapid Publications
Volume
9
Issue
14007
Pages
1 - 5
Language
English
Type
ArticleItem Usage Stats
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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.