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Proceedings Paper

Energy-dependent focusing properties of a kinoform Fresnel lens
Author(s): Kenneth Evans-Lutterodt; James M. Ablett; Aaron Stein; Donald M. Tennant; Fred Klemens; Ashley Taylor
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Paper Abstract

One application of Kinoform Fresnel Lenses is to generate small focal spots of hard X-ray photons with high gain for micro-diffraction experiments. A Kinoform lens can be obtained from a refractive lens by deleting material such that at the design photon energy, the deleted regions correspond to with modulo 2π phase-shifts in the phase front. At photon energies different from the design photon energy, the phase jumps are no longer 2π, and the diffractive properties of the kinoform become more significant. We present measurements and calculations of spot size versus photon energy.

Paper Details

Date Published: 4 November 2004
PDF: 7 pages
Proc. SPIE 5539, Design and Microfabrication of Novel X-Ray Optics II, (4 November 2004); doi: 10.1117/12.560296
Show Author Affiliations
Kenneth Evans-Lutterodt, Brookhaven National Lab. (United States)
James M. Ablett, Brookhaven National Lab. (United States)
Aaron Stein, Brookhaven National Lab. (United States)
Donald M. Tennant, New Jersey Nanofabrication Ctr. (United States)
Fred Klemens, New Jersey Nanofabrication Ctr. (United States)
Ashley Taylor, New Jersey Nanofabrication Ctr. (United States)


Published in SPIE Proceedings Vol. 5539:
Design and Microfabrication of Novel X-Ray Optics II
Anatoly A. Snigirev; Derrick C. Mancini, Editor(s)

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