Photonic bandgaps in patterned waveguides of silicon-rich silicon dioxide

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Citations (SciVal)


The waveguides of photoluminescent silicon-rich silicon dioxide were described. These waveguides were patterned by triangular two-dimensional (2D) photonic crystals to give higher-order photonic bandgaps occuring within the luminescence band of the core material. It was shown that the photonic crystal modification of the photoluminescence spectrum allows identification of angle-tuned photonic band-gaps, in close agreement with 2D plane wave expansion and finite-difference time domain simulations. The importance of these findings for the development of integrated optical circuit based on silicon-compatible microelectronics was also discussed.

Original languageEnglish
Pages (from-to)2415-2417
Number of pages3
JournalApplied Physics Letters
Issue number13
Publication statusPublished - 29 Mar 2004
Externally publishedYes


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