Journal article
Photowritten high-Q cavities in two-dimensional chalcogenide glass photonic crystals
MW Lee, C Grillet, S Tomljenovic-Hanic, EC Mägi, DJ Moss, BJ Eggleton, X Gai, S Madden, DY Choi, DAP Bulla, B Luther-Davies
Optics Letters | OPTICAL SOC AMER | Published : 2009
DOI: 10.1364/OL.34.003671
Abstract
We demonstrate a high-Q (∼125,000) photonic crystal (PhC) cavity formed using a postprocessing optical exposure technique where the refractive index of a photosensitive chalcogenide PhC is modified locally. The evolution of the cavity resonances was monitored in situ during writing using a tapered fiber evanescent coupling system, and the Q of 125,000 represents 1 order of magnitude increase over previously reported cavities in two-dimensional chalcogenide glass PhC. © 2009 Optical Society of America.
Grants
Funding Acknowledgements
Funding from the Australian Research Council (ARC) through its Federation Fellow and Centres of Excellence programs is gratefully acknowledged.