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Proceedings Article

Energy-dependent focusing properties of a kinoform Fresnel lens

[+] Author Affiliations
Kenneth Evans-Lutterodt, James M. Ablett, Aaron Stein

Brookhaven National Lab. (USA)

Donald M. Tennant, Fred Klemens, Ashley Taylor

New Jersey Nanofabrication Ctr. (USA)

Proc. SPIE 5539, Design and Microfabrication of Novel X-Ray Optics II, 73 (November 4, 2004); doi:10.1117/12.560296
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From Conference Volume 5539

  • Design and Microfabrication of Novel X-Ray Optics II
  • Anatoly A. Snigirev; Derrick C. Mancini
  • Denver, CO | August 02, 2004

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.

© (2004) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Kenneth Evans-Lutterodt ; James M. Ablett ; Aaron Stein ; Donald M. Tennant ; Fred Klemens, et al.
"Energy-dependent focusing properties of a kinoform Fresnel lens", Proc. SPIE 5539, Design and Microfabrication of Novel X-Ray Optics II, 73 (November 4, 2004); doi:10.1117/12.560296; http://dx.doi.org/10.1117/12.560296


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