Resonant transport and near-field effects in photonic glasses

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Physical Review A. 2017, 96(4), 043871. ISSN 2469-9926. eISSN 2469-9934. Available under: doi: 10.1103/PhysRevA.96.043871
Zusammenfassung

A fundamental quantity in multiple scattering is the transport mean free path the inverse of which describes the scattering strength of a sample. In this paper, we emphasize the importance of an appropriate description of the effective refractive index neff in multiple light scattering to accurately describe the light transport in dense photonic glasses. Using neff as calculated by the energy-density coherent-potential approximation we are able to predict the transport mean free path of monodisperse photonic glasses. This model without any fit parameter is in qualitative agreement with numerical simulations and in fair quantitative agreement with spectrally resolved coherent backscattering measurements on new specially synthesized polystyrene photonic glasses. These materials exhibit resonant light scattering perturbed by strong near-field coupling, all captured within the model. Our model might be used to maximize the scattering strength of high index photonic glasses, which are a key in the search for Anderson localization of light in three dimensions.

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ISO 690AUBRY, Geoffroy J., Lukas SCHERTEL, Mengdi CHEN, Henrik WEYER, Christof M. AEGERTER, Sebastian POLARZ, Helmut CÖLFEN, Georg MARET, 2017. Resonant transport and near-field effects in photonic glasses. In: Physical Review A. 2017, 96(4), 043871. ISSN 2469-9926. eISSN 2469-9934. Available under: doi: 10.1103/PhysRevA.96.043871
BibTex
@article{Aubry2017-05-22T09:50:44ZReson-40837,
  year={2017},
  doi={10.1103/PhysRevA.96.043871},
  title={Resonant transport and near-field effects in photonic glasses},
  number={4},
  volume={96},
  issn={2469-9926},
  journal={Physical Review A},
  author={Aubry, Geoffroy J. and Schertel, Lukas and Chen, Mengdi and Weyer, Henrik and Aegerter, Christof M. and Polarz, Sebastian and Cölfen, Helmut and Maret, Georg},
  note={Article Number: 043871}
}
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