| Title: |
Complexity of 2D random laser modes at the transition from weak scattering to Anderson localization |
| Authors: |
Vanneste, C.; Sebbah, P. |
| Publication Year: |
2008 |
| Collection: |
Condensed Matter |
| Subject Terms: |
Condensed Matter - Mesoscale and Nanoscale Physics; Condensed Matter - Disordered Systems and Neural Networks |
| Description: |
The spatial extension and complexity of the eigenfunctions of an open finite-size two-dimensional (2D) random system are systematically studied for a random collection of systems ranging from weakly scattering to localized. The eigenfunctions are obtained by introducing gain in the medium and pumping just above threshold. All lasing modes are found to correspond to quasimodes of the passive system, for all regimes of propagation. We demonstrate the existence of multipeaked quasimodes or necklace states in 2D at the transition from localized to diffusive, resulting from the coupling of localized states.; Comment: Submitted to PRL |
| Document Type: |
Working Paper |
| DOI: |
10.1103/PhysRevA.79.041802 |
| Access URL: |
http://arxiv.org/abs/0807.1663 |
| Accession Number: |
edsarx.0807.1663 |
| Database: |
arXiv |