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- Ge, X., et al.
(författare)
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Impact of wave front and coherence optimization in coherent diffractive imaging
- 2013
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Ingår i: Optics Express. - 1094-4087. ; 21:9, s. 11441-11447
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Tidskriftsartikel (refereegranskat)abstract
- We present single shot nanoscale imaging using a table-top femtosecond soft X-ray laser harmonic source at a wavelength of 32 nm. We show that the phase retrieval process in coherent diffractive imaging critically depends on beam quality. Coherence and image fidelity are measured from single-shot coherent diffraction patterns of isolated nano-patterned slits. Impact of flux, wave front and coherence of the soft X-ray beam on the phase retrieval process and the image quality are discussed. After beam improvements, a final image reconstruction is presented with a spatial resolution of 78 nm (half period) in a single 20 fs laser harmonic shot.
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