Chalcogenide glass photonic crystals

Darren Freeman, Christian Grillet, Michael W. Lee, Cameron L C Smith, Yinlan Ruan, Andrei Rode, Maryla Krolikowska, Snjezana Tomljenovic-Hanic, C. Martijn de Sterke, Michael J. Steel, Barry Luther-Davies, Steve Madden, David J. Moss, Yong Hee Lee, Benjamin J. Eggleton*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

44 Citations (Scopus)


All-optical switching devices are based on a material possessing a nonlinear optical response, enabling light to control light, and are enjoying renewed interest. Photonic crystals are a promising platform for realizing compact all-optical switches operating at very low power and integrated on an optical integrated circuit. In this review, we show that by making photonic crystals from a highly nonlinear chalcogenide glass, we have the potential to integrate a variety of active devices into a photonic chip. We describe the fabrication and testing of two-dimensional Ge33As12 Se55 chalcogenide glass photonic crystal membrane devices (waveguides and microcavities). We then demonstrate the ability to post-tune the devices using the material photosensitivity. In one proposal we hope to introduce a double-heterostructure microcavity using the photosensitivity alone.

Original languageEnglish
Pages (from-to)3-11
Number of pages9
JournalPhotonics and Nanostructures - Fundamentals and Applications
Issue number1
Publication statusPublished - Apr 2008
Externally publishedYes

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