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Photonic bandgaps in patterned waveguides of silicon-rich silicon dioxide

By R.T. Neal, M.E. Zoorob, M.D. Charlton, G.J. Parker, C.E. Finlayson and J.J. Baumberg


We describe waveguides of photoluminescent silicon-rich silicon dioxide, which have been patterned by triangular two-dimensional (2D) photonic crystals to give higher-order photonic bandgaps occurring within the luminescence band of the core material. Photonic crystal modification of the photoluminescence spectrum allows identification of angle-tuned photonic bandgaps, in close agreement with 2D plane wave expansion and finite-difference time domain simulations. We discuss the importance of these findings for the development of integrated optical circuitry based on silicon-compatible microelectronics

Topics: QC
Year: 2004
OAI identifier: oai:eprints.soton.ac.uk:14045
Provided by: e-Prints Soton

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