期刊
OPTICS EXPRESS
卷 16, 期 16, 页码 11709-11717出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.16.011709
关键词
-
类别
We optimize photonic crystal cavities for enhancing the sensitivity to environmental changes by finite-difference time-domain method. For the heterostructure cavity created by local modulation of the air hole radius, the resonance shifts due to refractive index change of the background material are investigated. The shifts can be enhanced by reducing the photonic crystal slab thickness or introducing air holes in the cavity. The sensitivity of the thinner slab with central air holes is 310nm/RIU ( refractive index unit). The heterostructure created in the slotted waveguide of thin PhC slab shows better sensitivity of 512nm/RIU owing to strong confinement of electric field in the low-index region. (c) 2008 Optical Society of America.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据