Results 251 to 260 of about 47,681 (288)

Diffractive Imaging Using Partially Coherent X Rays

Physical Review Letters, 2009
The measured spatial coherence characteristics of the illumination used in a diffractive imaging experiment are incorporated in an algorithm that reconstructs the complex transmission function of an object from experimental x-ray diffraction data using 1.4 keV x rays. Conventional coherent diffractive imaging, which assumes full spatial coherence, is a
Whitehead, L. W., Williams, G. J., Quiney, H. M., Vine, David., Dilanian, R. A., Flewett, S., Nugent, K. A., Peele, Andrew Gareth., Balaur, Eugeniu., McNulty, I.   +9 more
openaire   +2 more sources

Enhancing resolution in coherent x-ray diffraction imaging

Journal of Physics: Condensed Matter, 2016
Achieving a resolution near 1 nm is a critical issue in coherent x-ray diffraction imaging (CDI) for applications in materials and biology. Albeit with various advantages of CDI based on synchrotrons and newly developed x-ray free electron lasers, its applications would be limited without improving resolution well below 10 nm.
Do Young, Noh, Chan, Kim, Yoonhee, Kim, Changyong, Song   +3 more
openaire   +2 more sources

Coherent X-Ray Diffraction Imaging with Nanofocused Illumination

Physical Review Letters, 2008
Coherent x-ray diffraction imaging is an x-ray microscopy technique with the potential of reaching spatial resolutions well beyond the diffraction limits of x-ray microscopes based on optics. However, the available coherent dose at modern x-ray sources is limited, setting practical bounds on the spatial resolution of the technique.
C G, Schroer, P, Boye, J M, Feldkamp, J, Patommel, A, Schropp, A, Schwab, S, Stephan, M, Burghammer, S, Schöder, C, Riekel   +9 more
openaire   +2 more sources

Ultrafast Coherent Diffractive X-ray Imaging

Frontiers in Optics 2007/Laser Science XXIII/Organic Materials and Devices for Displays and Energy Conversion, 2007
Single ultrafast pulse high-resolution coherent x-ray images and holograms have been recorded at the FLASH free-electron laser. These experiments point the way to near-atomic resolution imaging at future x-ray laser sources.
openaire   +1 more source

Coherent diffraction imaging using focused hard X-rays

Journal of the Korean Physical Society, 2016
A quantitative height profile image of a silicon nano-trench structure was obtained via coherent diffraction imaging (CDI) utilizing focused X-rays at a photon energy of 5.5 keV. The ability to optimize the spatial coherence and the photon flux density of a focused X-ray beam was the key technique for achieving such technical progress at a given X-ray ...
Sunam Kim, Sangsoo Kim, Su Yong Lee, Chan Kim, Yoonhee Kim, Do Young Noh, Shashidhara Marathe, Changyong Song, Marcus Gallagher-Jones, Hyon Chol Kang   +9 more
openaire   +1 more source

KOTOBUKI-1 apparatus for cryogenic coherent X-ray diffraction imaging

Review of Scientific Instruments, 2013
We have developed an experimental apparatus named KOTOBUKI-1 for use in coherent X-ray diffraction imaging experiments of frozen-hydrated non-crystalline particles at cryogenic temperature. For cryogenic specimen stage with small positional fluctuation for a long exposure time of more than several minutes, we here use a cryogenic pot cooled by the ...
Masayoshi, Nakasako, Yuki, Takayama, Tomotaka, Oroguchi, Yuki, Sekiguchi, Amane, Kobayashi, Keiya, Shirahama, Masaki, Yamamoto, Takaaki, Hikima, Koji, Yonekura, Saori, Maki-Yonekura, Yoshiki, Kohmura, Yuichi, Inubushi, Yukio, Takahashi, Akihiro, Suzuki, Sachihiro, Matsunaga, Yayoi, Inui, Kensuke, Tono, Takashi, Kameshima, Yasumasa, Joti, Takahiko, Hoshi   +19 more
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Coherent X-ray diffraction imaging of strain at the nanoscale

Nature Materials, 2009
The understanding and management of strain is of fundamental importance in the design and implementation of materials. The strain properties of nanocrystalline materials are different from those of the bulk because of the strong influence of their surfaces and interfaces, which can be used to augment their function and introduce desirable ...
Robinson, Ian K., Harder, Ross
openaire   +3 more sources

Coherent Diffractive Imaging with X-rays and Electrons

AIP Conference Proceedings, 2004
Due to a fusion of ideas from several disciplines, it is now often possible to numerically retrieve the apparently lost phases from a recording of the intensity diffracted from an unknown object. This opens the possibility to develop forms of microscopy based on illumination by coherent beams produced either by a field emission gun in an electron ...
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Coherent X-ray Diffraction Imaging of Cyanidioschyzon merolae

2017
Coherent X-ray diffraction imaging (CXDI) is a lensless imaging technique for visualizing the structures of noncrystalline particles at a resolution of several tens of nanometers. The targets are particles with dimensions in the sub-micrometer to micrometer range. We carried out CXDI experiments at 66 K to investigate the internal structures of a whole
Yuki Sekiguchi, Amane Kobayashi, Yuki Takayama, Mao Oide, Asahi Fukuda, Takahiro Yamamoto, Koji Okajima, Tomotaka Oroguchi, Takeshi Hirakawa, Yayoi Inui, Sachihiro Matsunaga, Masaki Yamamoto, Masayoshi Nakasako   +12 more
openaire   +1 more source

COHERENT DIFFRACTION IMAGING WITH HARD X-RAY WAVEGUIDES

2013
Coherent X-ray diffraction imaging (CXDI) has been widely applied in the nanoscopic world, offering nanometric-scale imaging of non-crystallographic samples, and permitting the next-generation structural studies on living cells, single virus particles and biomolecules.
De Caro Liberato, Giannini Cinzia, Pelliccia Daniele, Cedola Alessia, Lagomarsino Stefano   +4 more
openaire   +3 more sources