Single-pulse-induced total population inversion between indirectly coupled quantum states
We propose a scheme to induce total population inversion between two indirectly coupled states of an atom. In contrast to well-known pulse shaping techniques, where the temporal intensity or phase of the laser field is modulated to maximize the population transfer, here we use a single unshaped Gaus...
Elmentve itt :
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| Dokumentumtípus: | Cikk |
| Megjelent: |
2019
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| Sorozat: | JOURNAL OF PHYSICS B: ATOMIC MOLECULAR AND OPTICAL PHYSICS
52 No. 2 |
| Tárgyszavak: | |
| doi: | 10.1088/1361-6455/aaf4d9 |
| mtmt: | 30468815 |
| Online Access: | http://publicatio.bibl.u-szeged.hu/27579 |
| Tartalmi kivonat: | We propose a scheme to induce total population inversion between two indirectly coupled states of an atom. In contrast to well-known pulse shaping techniques, where the temporal intensity or phase of the laser field is modulated to maximize the population transfer, here we use a single unshaped Gaussian laser pulse of constant frequency to completely invert the population between the ground state and an excited state of the system, for which a direct transition is forbidden. In our numerical study, multiphoton transitions of atomic sodium are considered in the presence of dynamic Stark-shifts and a detailed analysis is given about the pulse duration and detuning dependence of the efficient population inversion between the 3s and 4s states. |
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| Terjedelem/Fizikai jellemzők: | 7 |
| ISSN: | 0953-4075 |