| Autor: |
A. Mysyrowicz, R. Danylo, A. Houard, V. Tikhonchuk, X. Zhang, Z. Fan, Q. Liang, S. Zhuang, L. Yuan, Y. Liu |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
APL Photonics, Vol 4, Iss 11, Pp 110807-110807-6 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
2378-0967 |
| DOI: |
10.1063/1.5116898 |
| Popis: |
We experimentally demonstrate the existence of long-lived coherent polarizations coupling simultaneously ground state X (X2Σg+) to excited states A (A2Πu) and B (B2Σu+) of N2+ inside a plasma created by a short intense laser pulse at 800 nm. This three-level V-scheme arrangement is responsible for a strong optical gain without population inversion at the B–X transition at 391.4 nm. Simulations based on Maxwell-Bloch equations reproduce well the kinetics and the pressure dependence of the gain. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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