منابع مشابه
Electromagnetic Wave Surface Velocimetry
Electromagnetic wave surface velocimeters ESVs measure the Doppler shift in electromagnetic waves reflected from the water surface. They provide nonintrusive water surface velocity measurements from bridges and river banks. Comparisons with laboratory and field tests show very good agreement over a wide range of elevation and planview angles. Laboratory testing shows comparable results between ...
متن کاملRadio-Wave Propagation and Electromagnetic Surface Waves.
1. A Discrepancy and Its Resolution.-The problem of the propagation of radio-waves along the surface of the (plane) earth was first treated in a celebrated paper by A. Sommerfeld (1909).1 Let the (r, (p)-plane of a cylindric system of coordinates coincide with the plane of the earth surface and let the z-axis point vertically upward. Sommerfeld considered a vertically oscillating dipole (radio-...
متن کاملSurface electromagnetic wave equations in a warm magnetized quantum plasma
plasma Chunhua Li, Zhengwei Wu, Weihong Yang, and Paul K. Chu Department of Modern Physics, University of Science and Technology of China, 230026 Hefei, China Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong Center of Low Temperature Plasma Application, Yunnan Aerospace Industry Company, Kunming, 650229 Yunnan, People’s Republic of C...
متن کاملComment on ""Electromagnetic Wave Dynamics in Matter- Wave Superradiant Scattering"
The Letter by Deng et al. [1] presents an analytic theoretical description of matter-wave superradiance [2] which claims to go beyond previous theoretical frameworks. I show here that the theory presented in this Letter is not a description of superradiance per se, but rather an elegant perturbative description of a Raman amplifier far away from the superradiant threshold. As such, it merely is...
متن کاملSurface electromagnetic wave excitation on one-dimensional photonic band-gap arrays
Experiments are described on the prism-coupled excitation of surface electromagnetic waves in one-dimensional photonic band-gap arrays. The low loss of photonic band-gap materials leads to narrow angular reflectivity resonances and high surface fields. These attributes, coupled with the ability to engineer the optical properties of photonic band-gap arrays, suggest these materials as powerful r...
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ژورنال
عنوان ژورنال: The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science
سال: 1885
ISSN: 1941-5982,1941-5990
DOI: 10.1080/14786448508627695