电介质中的史密斯-珀塞尔辐射和异常多普勒效应

IF 1.3 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

JETP Letters Pub Date : 2025-06-25 DOI:10.1134/S0021364025605755

A. P. Potylitsyn

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引用次数: 0

摘要

研究了由金属条组成的光栅在电介质表面产生的史密斯-珀塞尔辐射特性。史密斯-珀塞尔辐射能够以小于切伦科夫锥角的角度在介质中传播。这可以看作是所谓反常多普勒效应的一种表现。提出并证实了一种探测相对论电子束在千兆赫范围内异常多普勒效应的实验。

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Smith–Purcell Radiation in Dielectric and the Anomalous Doppler Effect

The features of Smith–Purcell radiation in a dielectric from a grating consisting of metal strips deposited on the surface of the dielectric is considered. Smith–Purcell radiation is able to propagate in the dielectric at an angle smaller than the angle of the Cherenkov cone. This can be considered as a manifestation of the so-called anomalous Doppler effect. An experiment aimed at detecting the anomalous Doppler effect in the gigahertz range on a relativistic electron beam is proposed and substantiated.

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来源期刊

JETP Letters 物理-物理：综合

CiteScore

2.40

自引率

30.80%

发文量

164

审稿时长

3-6 weeks

期刊介绍： All topics of experimental and theoretical physics including gravitation, field theory, elementary particles and nuclei, plasma, nonlinear phenomena, condensed matter, superconductivity, superfluidity, lasers, and surfaces.