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research article

Influence of Disorder and Finite-Size Effects on Slow Light Transport in Extended Photonic Crystal Coupled-Cavity Waveguides

Mohamed, Mohamed Sabry
•
Lai, Yiming
•
Minkov, Momchil  
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December 1, 2018
Acs Photonics

A convenient approach for slowing down light in integrated optical circuits is by utilizing a set of coupled microcavities in a photonic crystal lattice. While this provides for flexibility in dispersion engineering, light transport is influenced by a combination of disorder and finite-size effects, setting limitations on the achievable slow light properties. In this study, the experimental characterization of slow light photonic crystal waveguides based on a coupled-cavity design is presented in the near-infrared wavelength range for extended chains comprising up to 800 cavities. The dispersive behavior of light along the waveguides is probed through Fourier-space imaging to elucidate the influence of disorder and cavity chain length on the optical response of the implemented design. Constraints on the slow-down factor of Bloch modes are identified in terms of decay length and induced light localization.

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Type
research article
DOI
10.1021/acsphotonics.8b00960
Web of Science ID

WOS:000454463000018

Author(s)
Mohamed, Mohamed Sabry
•
Lai, Yiming
•
Minkov, Momchil  
•
Savona, Vincenzo  
•
Badolato, Antonio
•
Houdre, Romuald  
Date Issued

2018-12-01

Published in
Acs Photonics
Volume

5

Issue

12

Start page

4846

End page

4853

Subjects

Nanoscience & Nanotechnology

•

Materials Science, Multidisciplinary

•

Optics

•

Physics, Applied

•

Physics, Condensed Matter

•

Science & Technology - Other Topics

•

Materials Science

•

Physics

•

photonic crystals

•

slow light

•

coupled-cavity waveguides

•

disorder

•

pair generation

Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LTPN  
Available on Infoscience
January 23, 2019
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/153815
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