Results 41 to 50 of about 111,516 (212)
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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Optical properties of in situ eye lenses measured with X-ray Talbot interferometry: a novel measure of growth processes. [PDF]
PLoS ONE, 2011 The lens, a major optical component of the eye, has a gradient refractive index, which is required to provide sufficient refractive power and image quality.
Masato Hoshino +5 more
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Comparison of Thermal Neutron and Hard X-ray Dark-Field Tomography
Journal of Imaging, 2020 High visibility (0.56) neutron-based multi-modal imaging with a Talbot–Lau interferometer at a wavelength of 1.6 Å is reported. A tomography scan of a strongly absorbing quartz geode sample was performed with both the neutron and an X-ray grating ...
Alex Gustschin +6 more
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A momentum filter for atomic gas
New Journal of Physics, 2013 We propose and demonstrate a momentum filter for atomic gas-based on a designed Talbot–Lau interferometer. It consists of two identical optical standing-wave pulses separated by a delay equal to odd multiples of the half Talbot time.
Wei Xiong +4 more
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Scientific Reports, 2022 Grating-based X-ray imaging employs high aspect ratio absorption gratings to generate contrast induced by attenuating, phase-shifting, and small-angle scattering properties of the imaged object.
Simon Pinzek +4 more
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Phase-Contrast and Dark-Field Imaging
Journal of Imaging, 2018 Very early, in 1896, Wilhelm Conrad Röntgen, the founding father of X-rays, attempted to measure diffraction and refraction by this new kind of radiation, in vain. Only 70 years later, these effects were measured by Ulrich Bonse and Michael Hart who
Simon Zabler
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Stabilized fiber-optic Mach–Zehnder interferometer for carrier-frequency rejection
, 2013 We have demonstrated stabilization of a fiber-optic Mach–Zehnder interferometer, with a centimeter-scale path difference, to the transmission minimum for the carrier wave of a frequency-modulated laser beam.
Freegarde, Tim +4 more
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Exploration of the X-ray Dark-Field Signal in Mineral Building Materials
Journal of Imaging, 2022 Mineral building materials suffer from weathering processes such as salt efflorescence, freeze–thaw cycling, and microbial colonization. All of these processes are linked to water (liquid and vapor) in the pore space. The degree of damage following these
Benjamin K. Blykers +7 more
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Optimization of a field-widened Michelson interferometer [PDF]
, 1985 This paper considers the optical design of a wide-angle fixed-path Michelson interferometer consisting of two arm glasses and an air gap. It is shown that this configuration can be optimized to give (a) extra large fringes (over 50° in diameter) over a
Gault, W.A. +5 more
core +1 more source