Observation of genuine wave vector (k or β) gap in a dynamic transmission line and temporal photonic crystals

被引：78

作者：

Reyes-Ayona, J. R. ^{[1
]}

Halevi, P. ^{[1
]}

机构：

[1] Inst Nacl Astrofis Opt & Electr, Dept Elect, Puebla 72840, Mexico

来源：

APPLIED PHYSICS LETTERS | 2015年 / 107卷 / 07期

关键词：

DIELECTRIC FUNCTION; SURFACE-PLASMONS; PROPAGATION;

D O I：

10.1063/1.4928659

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

By definition, a temporal photonic crystal (TPC) has a permittivity epsilon(t) that varies periodically with time. We prove that, in the long wavelength limit, a TPC is accurately mimicked by a dynamic transmission line (DTL) having a capacitance (inductance) per unit length equal to epsilon(t) (mu). Employing a DTL in the microwave region, we measured the photonic band structure, which results to display a genuine wave vector (k or beta) gap, in very good agreement with our theoretical model and the equivalent TPC. (C) 2015 AIP Publishing LLC.

引用

页数：3

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