Optical resonance by a few-cycle pulse: an improved analytical solution
| Autor: | R. Parzyński, M. Sobczak |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Physics
education.field_of_study business.industry Population Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Pulse (physics) Optics Atom Rotating wave approximation Electrical and Electronic Engineering Physical and Theoretical Chemistry education business Optical resonance |
| Zdroj: | Optics Communications. 228:111-117 |
| ISSN: | 0030-4018 |
| DOI: | 10.1016/j.optcom.2003.09.072 |
| Popis: | Avoiding the rotating-wave approximation (RWA), we investigate analytically the dynamics of a two-level atom in an optical-frequency pulse of a few-cycle duration. We present the exact analytical solution for the first-order non-RWA contribution to the known RWA dynamics. Our solution is an improvement of the recent solution by Genkin [Phys. Rev. A 58 (1998) 758]. The two solutions are compared and the difference between them is found to be non-negligible for certain evolution moments. Generally, the solution of Genkin is shown to give underestimated results for the measurable population difference between a pair of atomic levels. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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