Results 21 to 30 of about 498 (139)
High Power Laser Science and Engineering, 2023 Diagnosing the evolution of laser-generated high energy density (HED) systems is fundamental to develop a correct understanding of the behavior of matter under extreme conditions.
G. Pérez-Callejo +12 more
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From classical xenon fringes to hydrogen interferometry
New Journal of Physics, 2020 A setup with three equally spaced transmission gratings can be described as a moiré deflectometer in the classical regime and as a Talbot–Lau interferometer in the quantum regime.
Simon R Müller +2 more
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EFFECT OF OPTICAL FIBER HYDROGEN LOADING ON THE INSCRIPTION EFFICIENCY OF CHIRPED BRAGG GRATINGS BY MEANS OF KrF EXCIMER LASER RADIATION [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2016 Subject of Research.We present comparative results of the chirped Bragg gratings inscription efficiency in optical fiber of domestic production with and without low-temperature hydrogen loading. Method.
Sergey V. Varzhel +3 more
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Matter-wave interference of a native polypeptide
Nature Communications, 2020 Matter-wave interferometry of complex molecules is challenging due to difficulties in preparing and detecting molecular beams. Here the authors demonstrate quantum behavior of a polypeptide using matter-wave interference in an all-optical time-domain ...
A. Shayeghi +7 more
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An electron Talbot interferometer
New Journal of Physics, 2009 The Talbot effect, in which a wave imprinted with transverse periodicity reconstructs itself at regular intervals, is a diffraction phenomenon that occurs in many physical systems. Here we present the first observation of the Talbot effect for electron de Broglie waves behind a nanofabricated transmission grating.
McMorran, Benjamin J. +1 more
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Correction for mechanical inaccuracies in a scanning Talbot-Lau interferometer
IEEE Transactions on Medical Imaging, 2022 <p>Grating-based X-ray phase-contrast and in particular dark-field radiography are promising new imaging modalities for medical applications. Currently, the potential advantage of dark-field imaging in early-stage diagnosis of pulmonary diseases in humans is being investigated.
Wolfgang Noichl +19 more
openaire +4 more sources
Fabrication of High‐Aspect Ratio Nanogratings for Phase‐Based X‐Ray Imaging
Advanced Functional Materials, Volume 33, Issue 16, April 18, 2023., 2023 Phase‐based X‐ray imaging techniques achieve unmatched resolution for low‐Z objects but often rely on diffracting elements requiring challenging fabrication processes. Here, a key facile innovation to post‐metal assisted chemical etching drying makes submicron‐period gratings with a high aspect ratio (>40) feasible, being compatible with inexpensive ...
Martyna Michalska +7 more
wiley +1 more source
A Wigner Function Approach to Coherence in a Talbot-Lau Interferometer
Atoms, 2016 Using a thermal gas, we model the signal of a trapped interferometer. This interferometer uses two short laser pulses, separated by time T, which act as a phase grating for the matter waves.
Eric Imhof +2 more
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International Journal of Optics, 2019 Computer simulation of the interferometer combining properties of low-sensitive Talbot interferometer and high-sensitive holographic interferometer is considered. The interferometer has four output channels having different sensitivity.
Yusupzhan Kh. Ismanov +1 more
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INSCRIPTION PROCESS RESEARCH AND OPTIMIZATION FOR SUPERIMPOSED FIBER BRAGG GRATINGS [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2017 Subject of Research. The paper presents the study of inscription process distinctive features for superimposed fiber Bragg gratings. We analyzed spectral characteristics changes of superposition segregated gratings that appear during inscription of ...
Kirill A. Konnov +6 more
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