Nonstationary Regime of Random Lasers
| Autor: | Andreasen, Jonathan, Sebbah, Patrick, Vanneste, Christian |
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| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | Phys. Rev. A 84, 023826 (2011) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevA.84.023826 |
| Popis: | A numerical study is presented of one-dimensional and two-dimensional random lasers as a function of the pumping rate above the threshold for lasing. Depending on the leakiness of the cavity modes, we observe that the stationary lasing regime becomes unstable above a second threshold. Coherent instabilities are observed as self pulsation of the total output intensity, population inversion, and polarization. Comment: 10 pages, 5 figures |
| Databáze: | arXiv |
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