Riboli, F, Caselli, N, Vignolini, S et al. (9 more authors) (2014) Engineering of light confinement in strongly scattering disordered media. Nature Materials, 13. 720 - 725. ISSN 1476-1122
Abstract
Disordered photonic materials can di use and localize light through random multiple scattering, o ering opportunities to study mesoscopic phenomena, control light–matter interactions, and provide new strategies for photonic applications. Light transport in such media is governed by photonic modes characterized by resonances with finite spectral width and spatial extent. Considerable steps have been made recently towards control over the transport using wavefront shaping techniques. The selective engineering of individual modes, however, has been addressed only theoretically. Here, we experimentally demonstrate the possibility to engineer the confinement and the mutual interaction of modes in a two-dimensional disordered photonic structure. The strong light confinement is achieved at the fabrication stage by an optimization of the structure and an accurate and local tuning of the mode resonance frequencies is achieved via post-fabrication processes. To show the versatility of our technique, we selectively control the detuning between overlapping localized modes and observe both frequency crossing and anti-crossing behaviours, thereby paving the way for the creation of open transmission channels in strongly scattering media.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2014, Macmillan Publishers Limited. This is an author produced version of a paper published in Nature Materials. Uploaded in accordance with the publisher's self-archiving policy. |
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: | 16 Oct 2015 12:03 |
Last Modified: | 18 Jan 2018 11:32 |
Published Version: | http://dx.doi.org/10.1038/nmat3966 |
Status: | Published |
Publisher: | Nature Publishing Group |
Identification Number: | 10.1038/nmat3966 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:89269 |