Cherenkov Emission Generated by a Modulated Source in 2D Dispersive Photonic Crystal Slabs

被引:0
作者
Martinez-Sanchez, Erika [1 ]
Burlak, Gennadiy [2 ]
Rodriguez-Garcia, Carlos [3 ]
Gallardo-Heredia, Marisol [1 ]
Avila-Lopez, Ulises [1 ]
机构
[1] Univ Autonoma Coahuila, Fac Ingn, Blvd Fundadores Km,13 Ciudad Univ, Arteaga 25354, Coahuila, Mexico
[2] Univ Autonoma Estado Morelos, Ctr Invest Ingn & Ciencias Aplicadas, Ave Univ 1001, Cuernavaca 62210, Morelos, Mexico
[3] Univ Autonoma Coahuila, Fac Ciencias Fis Matemat, Unidad Campo Redondo, Prol David Berlanga S-N, Saltillo 25020, Coahuila, Mexico
关键词
RADIATION; MODES;
D O I
10.1155/2020/7431915
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This work presents a systematic numerical study of Cherenkov optical radiation generated by a modulated source that moves with uniform velocity on a two-dimensional (2D) photonic crystal (PCr) slab surface. We apply the FDTD technique with emphasis on the dispersion properties of the periodic medium to perform our numerical analysis. The field oscillations generated at the passage of a modulated source in the PCr produce a series of spectral resonances corresponding to the eigenmodes in the spatial frequency domain for the photonic slab. The amplitudes of the field oscillations have maximal values in the group cone closely to the path of the moving charge.
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页数:9
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