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

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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.

Item Type:	Article
Keywords:	Fresnel lenses; focal fields; Gaussian beam; MM-wave; THz applications;
Academic Unit:	Faculty of Science and Engineering > Experimental Physics
Item ID:	9789
Identification Number:	https://doi.org/10.2971/jeos.2014.14007
Depositing User:	Dr. Marcin Lukasz Gradziel
Date Deposited:	17 Aug 2018 13:48
Journal or Publication Title:	Journal of the European Optical Society - Rapid Publications
Publisher:	European Optical Society
Refereed:	Yes
URI:	http://www.jeos.org/
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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