Results 21 to 30 of about 7,907,205 (365)
Roadmap on nonlinear optics–focus on Chinese research
JPhys Photonics, 2023 In nonlinear optical systems, the optical superposition principle breaks down. The system’s response (including electric polarization, current density, etc) is not proportional to the stimulus it receives. Over the past half century, nonlinear optics has
Mengxin Ren +38 more
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Recent Development in Metasurfaces: A Focus on Sensing Applications
Nanomaterials, 2022 One of the fastest-expanding study areas in optics over the past decade has been metasurfaces (MSs). These subwavelength meta-atom-based ultrathin arrays have been developed for a broad range of functions, including lenses, polarization control ...
N. Kazanskiy, S. Khonina, M. A. Butt
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Axiparabola: a new tool for high-intensity optics [PDF]
Journal of Optics, 2021 An axiparabola is a reflective aspherical optics that focuses a light beam into an extended focal line. The light intensity and group velocity profiles along the focus are adjustable through the proper design. The on-axis light velocity can be controlled,
Kosta Oubrerie +5 more
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W/B short period multilayer structures for soft x-rays
AIP Advances, 2020 X-ray W/B multilayer mirrors with a period of 2.5 nm were deposited by dc magnetron sputtering and studied in comparison with W/Si multilayer systems of the same period.
R. V. Medvedev +4 more
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Collective-Mode Enhanced Matter-Wave Optics.
Physical Review Letters, 2021 In contrast to light, matter-wave optics of quantum gases deals with interactions even in free space and for ensembles comprising millions of atoms. We exploit these interactions in a quantum degenerate gas as an adjustable lens for coherent atom optics.
Christian Deppner +18 more
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Journal of Synchrotron Radiation, 2022 Studying electron- and X-ray-induced electron cascades in solids is essential for various research areas at free-electron laser facilities, such as X-ray imaging, crystallography, pulse diagnostics or X-ray-induced damage.
Vladimir Lipp +2 more
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Rogue waves and analogies in optics and oceanography [PDF]
Nature Reviews Physics, 2019 Over a decade ago, an analogy was drawn between the generation of large ocean waves and the propagation of light fields in optical fibres. This analogy drove numerous experimental studies in both systems, which we review here.
J. Dudley +4 more
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Monocular Real Time Full Resolution Depth Estimation Arrangement with a Tunable Lens
Applied Sciences, 2022 This work introduces a real-time full-resolution depth estimation device, which allows integral displays to be fed with a real-time light-field. The core principle of the technique is a high-speed focal stack acquisition method combined with an efficient
Ricardo Oliva-García +3 more
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Optical Helicity of Light in the Tight Focus
Photonics, 2023 Using the Richards–Wolf formalism, we obtain explicit analytical expressions for the optical helicity density at the tight focus of four different light beams: a linearly polarized optical vortex, an optical vortex with right-handed circular polarization, superposition of a cylindrical vector beam and a linearly polarized beam, and a beam with hybrid ...
Alexey A. Kovalev +2 more
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Nature Communications, 2021 Adaptive optics (AO) corrects sample aberrations and allows high spatial resolution at depth in vivo. Here the authors report an AO method for Bessel focus; they apply AO Bessel focus scanning fluorescence microscopy to volumetric imaging and measure ...
Wei Chen +6 more
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