Mode structure of coupled L3 photonic crystal cavities

A. R.A. Chalcraft, S. Lam, B. D. Jones, D. Szymanski, R. Oulton, A. C.T. Thijssen, M. S. Skolnick, D. M. Whittaker, T. F. Krauss, A. M. Fox

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54 Citations (Scopus)


We investigate the energy splitting, quality factor and polar-ization of the fundamental modes of coupled L3 photonic crystal cavities. Four different geometries are evaluated theoretically, before experimentally investigating coupling in a direction at 30° to the line of the cavities. In this geometry, a smooth variation of the energy splitting with the cavity separation is predicted and observed, together with significant differences between the polarizations of the bonding and anti-bonding states. The con-trolled splitting of the coupled states is potentially useful for applications that require simultaneous resonant enhancement of two transitions.

Original languageEnglish
Pages (from-to)5670-5675
Number of pages6
JournalOptics Express
Issue number6
Publication statusPublished - 14 Mar 2011
Externally publishedYes

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