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. (C) 2013 Optical Society of America
https://hal-ensta-paris.archives-ouvertes.fr//hal-01401269
Contributor : Pierre Zaparucha
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Submitted on : Wednesday, November 23, 2016 - 10:14:06 AM
Last modification on : Wednesday, July 3, 2019 - 10:48:03 AM
X. Ge, W. Boutu, D. Gauthier, F. Wang, A. Borta, et al.. Impact of wave front and coherence optimization in coherent diffractive imaging. Optics Express, Optical Society of America, 2013, 21 (9), ⟨10.1364/OE.21.011441⟩. ⟨hal-01401269⟩
