Impact of wave front and coherence optimization in coherent diffractive imaging
2013 (English)In: Optics Express, ISSN 1094-4087, Vol. 21, no 9, 11441-11447 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2013. Vol. 21, no 9, 11441-11447 p.
Natural Sciences Engineering and Technology
IdentifiersURN: urn:nbn:se:uu:diva-202925DOI: 10.1364/OE.21.011441ISI: 000318906500132OAI: oai:DiVA.org:uu-202925DiVA: diva2:634518