Three-dimensional photon confinement in photonic crystals of low-dimensional periodicity
Three-dimensional photon confinement in photonic crystals of low-dimensional periodicity
复制标题
低维周期性光子晶体中的三维光子限制
DOI：
10.1049/ip-opt:19982467
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发表时间：
1998
影响因子：
5.7
通讯作者：
J. Joannopoulos
中科院分区：
文献类型：
--
作者：
P. R. Villeneuve;S. Fan;Steven G. Johnson;J. Joannopoulos
一维或二维周期性的光子晶体可用于在模态体积为立方半波长量级的介电波导中实现三维光子限制。由于低维周期性光子晶体不具有完整的三维带隙。随着模态体积的减小，微腔的辐射损失不断增加。高/spl Qscr/谐振模式可以通过降低光子限制的强度来产生。模态体积越大，辐射损耗就越低，与腔外波导模式的耦合也就越有效。
Photonic crystals of one- or two-dimensional periodicity can be used to achieve three-dimensional photon confinement in dielectric waveguides with modal volumes of the order of a cubic half-wavelength. Since photonic crystals of low-dimensional periodicity do not have full three-dimensional bandgaps. The microcavities undergo increasing radiation losses with decreasing modal volumes. High-/spl Qscr/ resonant modes can be generated by reducing the strength of the photon confinement. Increasingly, larger modal volumes lead to lower radiation losses and more efficient coupling to waveguide modes outside the cavity.