Analytical and Bioanalytical Chemistry

, Volume 404, Issue 5, pp 1303–1309

Use of fractal zone plates for transmission X-ray microscopy

  • Xin Ge
  • Zhili Wang
  • Kun Gao
  • Dajiang Wang
  • Zhao Wu
  • Jian Chen
  • Zhiyun Pan
  • Kai Zhang
  • Youli Hong
  • Peiping Zhu
  • Ziyu Wu
Original Paper

Abstract

In this contribution we discuss the possibility of designing a modified transmission X-ray microscope by using fractal zone plates (Fzps) as diffractive optical elements. In the modified transmission X-ray microscope optical layout, we first introduced a fractal zone plate as the microscope objective. Indeed, a fractal zone plate cannot only be used as an image-forming component but also as a condenser element to achieve an extended depth of field. Numerical analysis reveals that fractal zone plates and conventional Fresnel zone plates have similar imaging capabilities under different coherent illumination. Using a fractal zone plate as a condenser we also simulated axial irradiance. Results confirm that fractal zone plates can improve focusing capability with an extended depth of field. Although preliminary, these simulations clearly reveal that fractal zone plates, when available, will be of great help in microscope layouts, in particular for foreseen high-resolution applications in the “water window” as strongly required in biological research.

Keywords

Transmission X-ray microscopy Fractal zone plate Coherence Focusing properties 

Copyright information

© Springer-Verlag 2012

Authors and Affiliations

  • Xin Ge
    • 1
  • Zhili Wang
    • 1
  • Kun Gao
    • 1
  • Dajiang Wang
    • 1
  • Zhao Wu
    • 1
  • Jian Chen
    • 1
  • Zhiyun Pan
    • 1
  • Kai Zhang
    • 2
  • Youli Hong
    • 2
  • Peiping Zhu
    • 2
    • 1
  • Ziyu Wu
    • 1
    • 2
  1. 1.National Synchrotron Radiation LaboratoryUniversity of Science and Technology of ChinaHefeiChina
  2. 2.Beijing Synchrotron Radiation Facility, Institute of High Energy physicsChinese Academy of SciencesBeijingChina

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