A strong Q-switched N20 laser capable of60 MHz frequency sweep is used to induce population inversiou by optical adiabatic rapid passage on the +[asQ(8,7)] transition of I4 NH3. The fa'st inversion and the subsequent return to equihbrium are detected by a cw weak counterpropagating N20 laser, and ar
Selective population of dressed states by rapid adiabatic passage
โ Scribed by A.F. Linskens; N. Dam; B. Sartakov; J. Reuss
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 382 KB
- Volume
- 248
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
We report the direct observation of the dressed state which is populated during adiabatic passage of a molecule through the curved wavefronts of a strong nominally resonant pump laser. The dressed system is probed by a weak probe laser halfway during its passage through the pump field. Adiabaticity is demonstrated to break down at high probe intensity.
๐ SIMILAR VOLUMES
We report enhancement of third-harmonic generation in a nonlinear optical medium, prepared in maximum coherence by Stark-chirped rapid adiabatic passage (SCRAP). In this technique a strong off-resonant infrared radiation pulse induces an adiabatic passage process by sweeping the transition frequency
It is demonstrated that efficient and high vibrational excitation can be achieved using non-resonant stimulated Raman transitions for subsequent step by step climbing of vibrational levels. The pump laser (or both the pump and Stokes laser) frequency are to be swept in such a way that the frequency