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Photonic crystal slow light waveguides in a kagome lattice

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Date
15/08/2017
Author
Schulz, Sebastian A.
Upham, Jeremy
O'Faolain, Liam
Boyd, Robert W.
Funder
European Research Council
Grant ID
337508 337508
Keywords
QC Physics
Atomic and Molecular Physics, and Optics
NDAS
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Abstract
Slow light photonic crystal waveguides tightly compress propagating light and increase interaction times, showing immense potential for all-optical delay and enhanced light–matter interactions. Yet, their practical application has largely been limited to moderate group index values (<100), due to a lack of waveguides that reliably demonstrate slower light. This limitation persists because nearly all such research has focused on a single photonic crystal lattice type: the triangular lattice. Here, we present waveguides based on the kagome lattice that demonstrate an intrinsically high group index and exhibit slow and stopped light. We experimentally demonstrate group index values of >150, limited by our measurement resolution. The kagome-lattice waveguides are an excellent starting point for further slow light engineering in photonic crystal waveguides.
Citation
Schulz , S A , Upham , J , O'Faolain , L & Boyd , R W 2017 , ' Photonic crystal slow light waveguides in a kagome lattice ' , Optics Letters , vol. 42 , no. 16 , pp. 3243-3246 . https://doi.org/10.1364/OL.42.003243
Publication
Optics Letters
Status
Peer reviewed
DOI
https://doi.org/10.1364/OL.42.003243
ISSN
0146-9592
Type
Journal article
Rights
© 2017, Optical Society of America. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1364/OL.42.003243
Description
Canada Excellence Research Chairs, Government of Canada (CERC); H2020 European Research Council (ERC) (337508).
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/15821

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