Photonic bandgaps in patterned waveguides of silicon-rich silicon dioxide

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 photolumine...

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Bibliographic Details
Published in:Applied physics letters 2004-03, Vol.84 (13), p.2415-2417
Main Authors: Neal, R. T., Zoorob, M. E., Charlton, M. D., Parker, G. J., Finlayson, C. E., Baumberg, J. J.
Format: Article
Language:English
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Summary: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.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1690106