title: Coherent diffraction imaging analysis of shape-controlled nanoparticles with focused hard X-ray free-electron laser pulses.
abstract: We report the first demonstration of the coherent diffraction imaging analysis of nanoparticles using focused hard X-ray free-electron laser pulses, allowing us to analyze the size distribution of particles as well as the electron density projection of individual particles. We measured 1000 single-shot coherent X-ray diffraction patterns of shape-controlled Ag nanocubes and Au/Ag nanoboxes and estimated the edge length from the speckle size of the coherent diffraction patterns. We then reconstructed the two-dimensional electron density projection with sub-10 nm resolution from selected coherent diffraction patterns. This method enables the simultaneous analysis of the size distribution of synthesized nanoparticles and the structures of particles at nanoscale resolution to address correlations between individual structures of components and the statistical properties in heterogeneous systems such as nanoparticles and cells.
authors.affiliation: Department of Precision Science and Technology, Graduate School of Engineering, Osaka University , 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan.
authors.forename: Yukio
authors.initials: Y
authors.lastname: Takahashi
authors.forename: Akihiro
authors.initials: A
authors.lastname: Suzuki
authors.forename: Nobuyuki
authors.initials: N
authors.lastname: Zettsu
authors.forename: Tomotaka
authors.initials: T
authors.lastname: Oroguchi
authors.forename: Yuki
authors.initials: Y
authors.lastname: Takayama
authors.forename: Yuki
authors.initials: Y
authors.lastname: Sekiguchi
authors.forename: Amane
authors.initials: A
authors.lastname: Kobayashi
authors.forename: Masaki
authors.initials: M
authors.lastname: Yamamoto
authors.forename: Masayoshi
authors.initials: M
authors.lastname: Nakasako
mesh_terms: D004583:Electrons; D006046:Gold / Q000737:chemistry; D007834:Lasers; D053758:Nanoparticles / Q000737:chemistry*; D011674:Pulse; D012834:Silver / Q000737:chemistry; D014961:X-Ray Diffraction; D014965:X-Rays
chemical_list: D012834:Silver; D006046:Gold