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Physicists just trapped light tighter than thought possible without using a speck of metal — a trick that could reshape the chips inside every device
A beam of light, by the rules physicists have relied on for more than a century, can only be squeezed so small. Push it into ...
Physicists at Peking University have uncovered a new way to confine light far beyond conventional limits — without relying on ...
Abstract: In this study, the dispersion of acoustic waves in a shallow-water environment with a two-layer bottom (gradient layer over a uniform basement) is investigated. This model leads to an ...
Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...
Optical dispersion occurs when the refractive index of a material changes with the wavelength of incoming light. This variation causes different colors to move at different speeds in transparent media ...
An in-depth study has been carried out for the dispersion of Love waves in an isotropic elastic layer sandwiched between orthotropic and prestressed inhomogeneous elastic half-spaces. The ...
Abstract: “Hot” dispersion equations of axisymmetric TM mode of a coaxial double-grating slow-wave structure (SWS) with an annular beam is obtained. Utilizing field matching method, in which the ...
The way in which a surface wave propagates (e.g. a Rayleigh wave) on a circumference differs from that of an infinite flat half-space when the wavelengths are comparable to the circumference ($2 \pi R ...
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