High-Q cavities in multilayer photonic crystal slabs

Snjezana Tomljenovic-Hanic*, C. De Martyn Sterke, M. J. Steel, Benjamin J. Eggleton, Yoshinori Tanaka, Susumu Noda

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)


We propose a novel concept for creating high-g cavities in photonic crystal slabs (PCS). These cavities are formed by depositing a polymer layer on top of a photonic crystal membrane fabricated in a high index semiconductor slab. We show that such multilayer structures exhibit a mode-gap and can yield high-Q microcavities with quality factors of Q-106. This allows the cavity to be created by polymer processing, following the much more demanding semiconductor processing that is used to generate a uniform PCS. Depending on the polymer used, these structures can be additionally tuned using photosensitivity or the electro-optic effect.

Original languageEnglish
Pages (from-to)17248-17253
Number of pages6
JournalOptics Express
Issue number25
Publication statusPublished - 12 Dec 2007
Externally publishedYes


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