Double-sided split-step MM-wave Fresnel lenses: design, fabrication and focal field measurements

Date
2014-09
Authors
Yurchenko, V. B.
Ciydem, M.
Gradziel, M.
Murphy, J. A.
Altintas, A.
Advisor
Supervisor
Co-Advisor
Co-Supervisor
Instructor
Source Title
Journal of the European Optical Society
Print ISSN
1990-2573
Electronic ISSN
Publisher
European Optical Society : Rapid Publications
Volume
9
Issue
14007
Pages
1 - 5
Language
English
Type
Article
Journal Title
Journal ISSN
Volume Title
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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.

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Keywords
Fresnel Lenses, Focal Fields, Gaussian Beam, Mm-wave, Thz Applications
Citation
Published Version (Please cite this version)