Results 171 to 180 of about 3,149 (205)

Dose-efficient cryo-electron microscopy for thick samples using tilt- corrected scanning transmission electron microscopy. [PDF]

Nat Methods
Yu Y, Spoth KA, Colletta M, Nguyen KX, Zeltmann SE, Zhang XS, Paraan M, Kopylov M, Dubbeldam C, Serwas D, Siems H, Muller DA, Kourkoutis LF.   +12 more
europepmc   +1 more source

Fourier ptychographic enhancement of iterative pathways: autonomous 3D momentum coordination in hybrid ML-PIE architectures. [PDF]

Biomed Opt Express
Chen Y, Wang Y, Zheng J, Liu H, Li J, Xu T.   +5 more
europepmc   +1 more source

Quantitative analysis of human umbilical vein endothelial cell morphology and tubulogenesis. [PDF]

J Microsc
Mignone V, Arruda MA, Kilpatrick L, Moore B, Woolard J, Hill S, Goulding J.   +6 more
europepmc   +1 more source

In This Issue. [PDF]

Proc Natl Acad Sci U S A
europepmc   +1 more source

Terahertz ptychography [PDF]

Optics Letters, 2018
We realized a phase retrieval technique using terahertz (THz) radiation as an alternative to THz digital holography, named THz ptychography. Ptychography has been used in x-ray imaging as a groundbreaking improvement of conventional coherent diffraction imaging. Here we show that ptychography can be performed at THz frequencies too. We reconstructed an
Lorenzo Valzania, Thomas Feurer, Peter Zolliker   +2 more
exaly   +4 more sources

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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 Batey, Daniel Claus, J M Rodenburg   +2 more
exaly   +3 more sources

Ptychography by changing the area of probe light and scaled ptychography [PDF]

Optics Communications, 2014
Ptychography is a promising phase retrieval technique for visible light, X-ray and electron beams. Conventional ptychography reconstructs the amplitude and phase of an object light from a set of the diffraction intensity patterns obtained by the X-Y moving of the probe light.
Tomoyoshi Shimobaba, Takashi Kakue, Naohisa Okada   +2 more
exaly   +3 more sources

zPIE: an autofocusing algorithm for ptychography [PDF]

Optics Letters, 2020
An autofocusing algorithm for ptychography is proposed. The method optimizes a sharpness metric that would be observed in a differential interference microscope and is valid for both amplitude and phase modulating specimens. We experimentally demonstrate that the algorithm, based on the extended ptychographic iterative engine (ePIE), calibrates the ...
Lars Loetgering, Mengqi Du, Kjeld S E Eikema   +2 more
exaly   +4 more sources