1. Control of light diffusion in a disordered photonic waveguide.
- Author
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Sarma, Raktim, Golubev, Timofey, Yamilov, Alexey, and Cao, Hui
- Subjects
- *
WAVEGUIDES , *LIGHT propagation , *DIFFUSION coefficients , *PHOTONICS , *LOCALIZATION theory , *INDUCTIVELY coupled plasma spectrometry - Abstract
We control the diffusion of light in a disordered photonic waveguide by modulating the waveguide geometry. In a single waveguide of varying cross-section, the diffusion coefficient changes spatially in two dimensions due to localization effects. The intensity distribution inside the waveguide agrees with the prediction of the self-consistent theory of localization. Our work shows that wave diffusion can be efficiently manipulated without modifying the structural disorder. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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