Results 201 to 210 of about 43,541 (264)
Advanced Optical Materials, EarlyView.High‐pressure recrystallization provides a reproducible route to high‐quality CsPbBr3${\rm CsPbBr}_{3}$ thin films. Optimized processing at 300 bar yields smooth, pinhole‐free, single‐phase 3D perovskite layers with tunable thickness, enhanced crystallinity, reduced amplified‐spontaneous‐emission threshold, improved photostability, and phase‐transition
Asma Miled +15 more
wiley +1 more source
Cascading Spin‐Orbitronic Terahertz Emission in Ferromagnet/Nonmagnet Bilayers
Advanced Optical Materials, EarlyView.While the initial generation mechanism of picosecond orbital currents remains elusive, we reveal a cascading spin–orbital transport mechanism that induces optically driven terahertz emission in ferromagnet/nonmagnet heterostructures. Using a ferromagnet with strong spin–orbit coupling, we identify a thickness‐driven transition from spin‐dominated to ...
Younghun Kim +7 more
wiley +1 more source
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2021
Skull bone is the main obstacle for transcranial ultrasound therapy and imaging applications. Most efforts in characterizing ultrasonic properties of the skull have been limited to a narrow frequency range and normal incidence. On the other hand, acoustic guided waves in plates have been used in non-destructive evaluation of materials and also to ...
Héctor, Estrada, Daniel, Razansky
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Skull bone is the main obstacle for transcranial ultrasound therapy and imaging applications. Most efforts in characterizing ultrasonic properties of the skull have been limited to a narrow frequency range and normal incidence. On the other hand, acoustic guided waves in plates have been used in non-destructive evaluation of materials and also to ...
Héctor, Estrada, Daniel, Razansky
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Magnetohydrodynamic Waves in Wave Guides
The Physics of Fluids, 1959Propagation of magnetohydrodynamic waves is investigated in a fluid bounded by a cylindrical surface of constant, but not necessarily circular, cross section. The fluid is assumed to be nonviscous and perfectly conducting with a constant magnetic field applied parallel to the walls of the cylinder.
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Surface waves and guided waves
1956Although surface waves and guided waves may exist under a wide variety of conditions our main concern will be those generated in the earth by earthquakes or explosions. These waves are of interest to seismologists not only because they form the most prominent features of seismograms but also for their usefulness in determining the structure of the ...
Maurice Ewing, Frank Press
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Wave Harmonics and Guided Waves
2014Solutions of the homogeneous Helmholtz equation are referred to as wave harmonics. In this chapter, we will discuss the solution of this equation in rectangular, cylindrical and spherical coordinate systems. They are respectively called plane waves, cylindrical waves and spherical waves.
Kasra Barkeshli, Sina Khorasani
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Nonlinear Guided Wave Phenomena
Topical Meeting on Optical Bistability (OB3), 1985Integrated optics waveguides are ideal media for nonlinear optical interactions because high power densities can be maintained over centimeter propagation distances. Recent work in our laboratory, as well as that of other workers in the field will be reviewed. Liquid crystal media placed on top of thin films provide simple nonlinear waveguides in which
G. I. Stegeman, C. T. Seaton
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Journal of Applied Physics, 1948
The paper is devoted to a discussion of the properties of electromagnetic waves propagating with a velocity W <c. Boundary conditions are obtained for structures with very narrow slots, either closed or open, and a general method of solution of the wave equations is discussed.
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The paper is devoted to a discussion of the properties of electromagnetic waves propagating with a velocity W <c. Boundary conditions are obtained for structures with very narrow slots, either closed or open, and a general method of solution of the wave equations is discussed.
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2019
Use a one-dimension theory based on the normal to a plane wave to evaluate the propagation of light in a dielectric layer. If the ray strikes the walls of the guide it must meet the condition for total reflection. The theory, called the zigzag model, is not a “pure” geometric theory because we use the properties of interference and of phase change upon
openaire +1 more source
Use a one-dimension theory based on the normal to a plane wave to evaluate the propagation of light in a dielectric layer. If the ray strikes the walls of the guide it must meet the condition for total reflection. The theory, called the zigzag model, is not a “pure” geometric theory because we use the properties of interference and of phase change upon
openaire +1 more source
Accounts of Chemical Research, 2005
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
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AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
openaire +2 more sources