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

Autor:	Yurchenko V. B., Ciydem M., Gradziel M., Murphy J. A., Altintas A.
Jazyk:	angličtina
Rok vydání:	2014
Předmět:	fresnel lenses focal fields gaussian beam mm-wave thz applications Applied optics. Photonics TA1501-1820 Optics. Light QC350-467
Zdroj:	Journal of the European Optical Society-Rapid Publications, Vol 9, p 14007 (2014)
Druh dokumentu:	article
ISSN:	1990-2573 34049339
DOI:	10.2971/jeos.2014.14007
Popis:	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.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/4fed6d64e3404933974f8204c761d103 Zobrazit plný text záznamu View record in DOAJ