Spectrally enhanced light emission from aperiodic photonic structures

Light-emitting silicon-rich, Si N x ∕ Si O 2 Thue-Morse (T-M) multilayer structures have been fabricated in order to investigate the generation and transmission of light in strongly aperiodic deterministic dielectrics. Photoluminescence and optical transmission data experimentally demonstrate the pr...

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Bibliographic Details
Published in:Applied physics letters 2005-06, Vol.86 (26), p.261905-261905-3
Main Authors: Dal Negro, L., Yi, J. H., Nguyen, V., Yi, Y., Michel, J., Kimerling, L. C.
Format: Article
Language:English
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Summary:Light-emitting silicon-rich, Si N x ∕ Si O 2 Thue-Morse (T-M) multilayer structures have been fabricated in order to investigate the generation and transmission of light in strongly aperiodic deterministic dielectrics. Photoluminescence and optical transmission data experimentally demonstrate the presence of emission enhancement effects occurring at wavelengths corresponding to multiple T-M resonance states. Emission enhancement effects by a factor of almost 6 with respect to homogeneous Si N x dielectrics have been experimentally measured, in good agreement with transfer matrix simulations. The unprecedented degree of structural flexibility of T-M systems can provide alternative routes towards the fabrication of optically active multiwavelength photonic devices.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1954897