We investigate Anderson localization of light as occurring in ultrashort excitations. A theory based on time dependent coupled-mode equations predicts universal features in the spectrum of the transmitted pulse. In particular, the process of strong localization of light is shown to correspond to the formation of peaks in both the amplitude and in the group delay of the transmitted pulse. Parallel ab initio simulations made with finite-difference time-domain codes and molecular dynamics confirm theoretical predictions, while showing that there exists an optimal degree of disorder for the strong localization. © 2010 The American Physical Society.
|Original language||English (US)|
|Journal||Physical Review B|
|State||Published - Jan 25 2010|
Bibliographical noteKAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): KUK-F1-024-21 (2009/2012)
Acknowledgements: We acknowledge support from the INFM-CINECA initiative for parallel computing and CASPUR. The research leading to these results has received funding from the European Research Council under the European Community's Seventh Framework Program (Grant No. FP7/2007-2013)/ERC Grant Agreement No. 201766. A.F.'s research is supported by Award No. KUK-F1-024-21 (2009/2012) made by King Abdullah University of Science and Technology (KAUST).
This publication acknowledges KAUST support, but has no KAUST affiliated authors.