Highly confined mode above the light line in a two-dimensional photonic crystal slab

被引：16

作者：

Xu, Tao ^{[1
]}

Wheeler, Mark S. ^{[1
]}

Nair, Selvakumar V. ^{[2
]}

Ruda, H. E. ^{[1
,2
]}

Mojahedi, Mohammad ^{[1
]}

Aitchison, J. Stewart ^{[1
]}

机构：

[1] Univ Toronto, Dept Elect & Comp Engn, Toronto, ON M5S 3G4, Canada

[2] Univ Toronto, Ctr Nanotechnol, Toronto, ON M5S 3E4, Canada

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 24期

基金：

加拿大自然科学与工程研究理事会;

关键词：

electric fields; microcavities; microwave spectra; optical losses; optical materials; photonic crystals; Q-factor;

D O I：

10.1063/1.3046124

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We found that certain modes above the light line can satisfy total internal reflection in a two-dimensional photonic crystal slab, resulting in negligible vertical leakage. A heterogeneous cavity utilizing such a mode was designed and constructed for the microwave spectrum. Numerical calculations show the mode has a quality factor (Q) of 6x10(5) neglecting the material loss and 7600 including it. The measured Q (9000), resonance frequency, and mode pattern agreed well with the calculation. The mode has more than 50% of electric field energy in void space and is promising to have stronger interaction with materials introduced there.

引用

页数：3

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