Microcavity confinement based on an anomalous zero group-velocity waveguide mode

被引：43

作者：

Ibanescu, M ^{[1
]}

Johnson, SG ^{[1
]}

Roundy, D ^{[1
]}

Fink, Y ^{[1
]}

Joannopoulos, JD ^{[1
]}

机构：

[1] MIT, Ctr Mat Sci & Engn, Cambridge, MA 02139 USA

来源：

OPTICS LETTERS | 2005年 / 30卷 / 05期

关键词：

D O I：

10.1364/OL.30.000552

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose and demonstrate a mechanism for small-modal-volume high-Q cavities based on an anomalous uniform waveguide mode that has zero group velocity at a nonzero wave vector. In a short piece of a uniform waveguide with a specially designed cross section, light is confined longitudinally by small group-velocity propagation and transversely by a reflective cladding. The quality factor Q is greatly enhanced by the small group velocity for a set of cavity lengths that are separated by approximately pi/k(0), where k(0) is the longitudinal wave vector for which the group velocity is zero. (C) 2005 Optical Society of America.

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页码：552 / 554

页数：3

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