Riboli, F, La China, F, Gerardino, A et al. (6 more authors) (2015) Tailoring the photon hopping by nearest and next-nearest-neighbour interaction in photonic arrays. ACS Photonics. ISSN 2330-4022
Abstract
Arrays of photonic cavities are relevant structures for developing large-scale photonic integrated circuits and for investigating basic quantum electrodynamics phenomena, due to the photon hopping between interacting nanoresonators. Here, we investigate, by means of scanning near-field spectroscopy, numerical calculations and an analytical model, the role of different neighboring interactions that give rise to delocalized supermodes in different photonic crystal array configurations. The systems under investigation consist of three nominally identical two-dimensional photonic crystal nanocavities on membrane aligned along the two symmetry axes of the triangular photonic crystal lattice. We find that the nearest and next-nearest-neighbour coupling terms can be of the same relevance. In this case, a nonintuitive picture describes the resonant modes, and the photon hopping between adjacent nanoresonators is strongly affected. Our findings prove that exotic configurations and even postfabrication engineering of coupled nanoresonators could directly tailor the mode spatial distribution and the group velocity in coupled resonator optical waveguides.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Keywords: | Photonic nanocavity; near-field optics; neighbor interaction |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Pollard Institute (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 28 Apr 2015 11:27 |
Last Modified: | 08 Nov 2016 21:30 |
Published Version: | http://dx.doi.org/10.1021/acsphotonics.5b00041 |
Status: | Published |
Publisher: | American Chemical Society |
Identification Number: | 10.1021/acsphotonics.5b00041 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:85094 |