Results 211 to 220 of about 7,202 (228)

Wavelength-multiplexed multi-mode EUV reflection ptychography based on automatic differentiation. [PDF]

Light Sci Appl
Shao Y, Weerdenburg S, Seifert J, Urbach HP, Mosk AP, Coene W.   +5 more
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Single-shot ptychography & sparsity-based subwavelength ptychography

Frontiers in Optics 2015, 2015
We overcome two major limitations in ptychography - a powerful scanning coherent diffraction imaging technique. We demonstrate single-shot ptychography, overcoming the scanning temporal resolution limit and demonstrate sparsity-based subwavelength ptychography, overcoming the Abbe resolution limit.
Pavel Sidorenko, Edouard Pauwels, Shoham Sabach, Yonina C. Eldar, Mordechai Segev, Oren Cohen   +5 more
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Multiplexed Single-Shot Ptychography

Imaging and Applied Optics 2018 (3D, AO, AIO, COSI, DH, IS, LACSEA, LS&C, MATH, pcAOP), 2018
We demonstrate experimentally multiplexed single-shot ptychography. Specifically, we present a polarization-resolved single-shot ptychographic microscope, where the orthogonally polarized amplitudes and phases of a polarization-sensitive object are reconstructed from ptychographic data recorded in a single camera exposure.
Bing Kuan, Chen, Pavel, Sidorenko, Oren, Lahav, Or, Peleg, Oren, Cohen   +4 more
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Zernike x-ray ptychography

Optics Letters, 2016
We present an imaging technique combining Zernike phase-contrast imaging and ptychography. The contrast formation is explained by following the theory of Zernike phase-contrast imaging. The method is demonstrated with x-rays at a photon energy of 6.2 keV, showing how ptychographic reconstruction of a phase sample leads to a Zernike phase-contrast image
Vartiainen, Ismo, Mohacsi, Istvan, Stachnik, Karolina, Guizar-Sicairos, Manuel, David, Christian, Meents, Alke   +5 more
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Superresolution imaging via ptychography

Journal of the Optical Society of America A, 2011
Coherent diffractive imaging of objects is made considerably more practicable by using ptychography, where a set of diffraction patterns replaces a single measurement and introduces a high degree of redundancy into the recorded data. Here we demonstrate that this redundancy allows diffraction patterns to be extrapolated beyond the aperture of the ...
Andrew M, Maiden, Martin J, Humphry, Fucai, Zhang, John M, Rodenburg   +3 more
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Terahertz reflective ptychography

Unconventional Optical Imaging II, 2020
As a widely used lensless coherent diffraction imaging approach, ptychography has recently been implemented in Terahertz range. Combining with the unique penetration property of THz radiation, THz ptychography allows inspecting visually opaque samples and retrieving both amplitude and phase information.
Tang, Chao, Zhao, Yuchen, Tan, Fangrui, Wang, Dayong, Rong, Lu, Georges, Marc   +5 more
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Information multiplexing in ptychography

Ultramicroscopy, 2014
We show for the first time that ptychography (a form of lensless diffractive imaging) can recover the spectral response of an object through simultaneous reconstruction of multiple images that represent the object's response to a particular mode present in the illumination.
Darren J, Batey, Daniel, Claus, John M, Rodenburg   +2 more
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