3D simulation of the image formation in soft x-ray microscopes

作者:Selin Marten*; Fogelqvist Emelie; Holmberg Anders; Guttmann Peter; Vogt Ulrich; Hertz Hans M
来源:Optics Express, 2014, 22(25): 30756-30768.
DOI:10.1364/OE.22.030756

摘要

In water-window soft x-ray microscopy the studied object is typically larger than the depth of focus and the sample illumination is often partially coherent. This blurs out-of-focus features and may introduce considerable fringing. Understanding the influence of these phenomena on the image formation is therefore important when interpreting experimental data. Here we present a wave-propagation model operating in 3D for simulating the image formation of thick objects in partially coherent soft x-ray microscopes. The model is compared with present simulation methods as well as with experiments. The results show that our model predicts the image formation of transmission soft x-ray microscopes more accurately than previous models.

  • 出版日期2014-12-15