Journal ArticleDOI
Propagation of an attosecond X-ray pulse in an atomic-scale waveguide
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In this paper, the guiding of an attosecond (as) X-ray pulse in a two-dimensional atomic structure is analyzed, and the results obtained from a simple model show that an atomic-scale waveguide which consists of a barium monoxide lattice where five rows of atoms have been removed can successfully guide pulses with duration 20 as and wavelength 10 A.Abstract:
The guiding of an attosecond (as) X-ray pulse in a two-dimensional atomic structure is analyzed. The results obtained from a simple model show that an atomic-scale waveguide which consists of a barium monoxide lattice where five rows of atoms have been removed can successfully guide pulses with duration 20 as and wavelength 10 A. This is attributed to an improved total external reflection in the discrete atomic structure. When the carrier frequency is higher than the plasma frequency, the guide causes minor distortions in the pulse profile. For lower frequencies, the X-ray pulse is significantly affected by the guide dispersion. These results indicate that nano- and sub-nanostructures can be designed for transportation and processing of coherent attosecond-duration electromagnetic pulses, which is important for the newly emerging field of X-ray photonics.read more
Citations
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Journal ArticleDOI
Dispersion properties of x-ray waveguides.
TL;DR: Using the two coherent beams produced by the WG in the second (and higher) order of resonance suggests the use of the WC as a dispersion-free beam splitter, which can facilitate x-ray pump-probe experiments in the femtosecond temporal range without the need for external sources.
References
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Electrodynamics of continuous media
TL;DR: In this article, the propagation of electromagnetic waves and X-ray diffraction of X rays in crystals are discussed. But they do not consider the effects of superconductivity on superconducting conductors.
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Computational Electrodynamics: The Finite-Difference Time-Domain Method
TL;DR: This paper presents background history of space-grid time-domain techniques for Maxwell's equations scaling to very large problem sizes defense applications dual-use electromagnetics technology, and the proposed three-dimensional Yee algorithm for solving these equations.
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Photonic Crystals: Molding the Flow of Light
TL;DR: In this paper, the authors developed the theoretical tools of photonics using principles of linear algebra and symmetry, emphasizing analogies with traditional solid-state physics and quantum theory, and investigated the unique phenomena that take place within photonic crystals at defect sites and surfaces, from one to three dimensions.
Journal ArticleDOI
High-Harmonic Generation of Attosecond Pulses in the “Single-Cycle” Regime
TL;DR: In this article, a 3D model for high-harmonic generation with excitation pulses shorter than 25fs was proposed, where the temporal coherence of adjacent harmonic orders was improved compared with longer excitation pulse.
Journal ArticleDOI
Bismuth nanotubes: a rational low-temperature synthetic route.
TL;DR: The synthesis of bismuth metal nanotubes with uniform diameters of 5 nm and lengths ranging between 0.5-5 μm is reported, which indicates that phosphorus nanot tubes are stable and an interesting system for studying quantum confinement effects.