Intrinsic losses of coupled-cavity waveguides in planar-photonic crystals

被引：22
|
作者：
Martinez, A. [1 ]
Garcia, J. [1 ]
Sanchis, P. [1 ]
Cuesta-Soto, E. [1 ]
Blasco, J. [1 ]
Marti, J. [1 ]
机构：
[1] Univ Politecn Valencia, Nanophoton Technol Ctr, Valencia 46022, Spain
来源：
OPTICS LETTERS | 2007年 / 32卷 / 06期
关键词：
D O I：
10.1364/OL.32.000635
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Coupled-cavity waveguides (CCWs) allow light propagation with strong field confinement in the cavities and small group velocity, which greatly enhances the efficiency of nonlinear effects. In addition, guided modes have zero dispersion at the central region of the transmission miniband. We show that CCWs created in planar photonic crystals, in which index guiding is required in some spatial dimensions, are intrinsically lossy in the region of zero dispersion, which strongly limits their use in nonlinear applications and devices. (c) 2007 Optical Society of America
引用
收藏
页码：635 / 637
页数：3
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