title: Impact of wave front and coherence optimization in coherent diffractive imaging.
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.
authors.affiliation: Commissariat à l’Energie Atomique, Service des Photons, Atomes et Molécules, Bâtiment 522, Centre d’Etude de Saclay, 91191 Gif-sur-Yvette, France.
authors.forename: X
authors.initials: X
authors.lastname: Ge
authors.forename: W
authors.initials: W
authors.lastname: Boutu
authors.forename: D
authors.initials: D
authors.lastname: Gauthier
authors.forename: F
authors.initials: F
authors.lastname: Wang
authors.forename: A
authors.initials: A
authors.lastname: Borta
authors.forename: B
authors.initials: B
authors.lastname: Barbrel
authors.forename: M
authors.initials: M
authors.lastname: Ducousso
authors.forename: A I
authors.initials: AI
authors.lastname: Gonzalez
authors.forename: B
authors.initials: B
authors.lastname: Carré
authors.forename: D
authors.initials: D
authors.lastname: Guillaumet
authors.forename: M
authors.initials: M
authors.lastname: Perdrix
authors.forename: O
authors.initials: O
authors.lastname: Gobert
authors.forename: J
authors.initials: J
authors.lastname: Gautier
authors.forename: G
authors.initials: G
authors.lastname: Lambert
authors.forename: F R N C
authors.initials: FR
authors.lastname: Maia
authors.forename: J
authors.initials: J
authors.lastname: Hajdu
authors.forename: P
authors.initials: P
authors.lastname: Zeitoun
authors.forename: H
authors.initials: H
authors.lastname: Merdji
mesh_terms: D000465:Algorithms; D016477:Artifacts; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D053758:Nanoparticles / Q000648:ultrastructure*; D014961:X-Ray Diffraction / Q000379:methods*