Light scattering at a temporal boundary in a Lorentz medium

被引：16

作者：

Bakunov, M., I ^{[1
]}

Shirokova, A., V ^{[1
]}

Kurnikov, M. A. ^{[1
]}

Maslov, A., V ^{[1
]}

机构：

[1] Univ Nizhny Novgorod, Dept Radiophys, Nizhnii Novgorod 603022, Russia

来源：

OPTICS LETTERS | 2021年 / 46卷 / 19期

关键词：

REFLECTION; PROPAGATION; REFRACTION;

D O I：

10.1364/OL.437419

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Temporal discontinuity in the permittivity of a nondispersive dielectric (temporal boundary) is a conventional model for considering electromagnetic phenomena in dynamic materials and metamaterials. Here we apply a more general model of a Lorentz medium with the rapidly changing density of its structural elements (oscillators) or their resonant frequency to determine the realms of applicability of the conventional temporal boundary model. We demonstrate the dependence of the continuity conditions and the energy relations at a temporal boundary on the nonstationarity mechanism and the ratio between the rate of nonstationarity and the characteristic frequencies in the system. (C) 2021 Optical Society of America

引用

页码：4988 / 4991

页数：4

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