| Autor: |
Efimov, Dmitry K., Bruvelis, Martins, Bezuglov, Nikolai N., Dimitrijević, Milan S., Klyucharev, Andrey N., Srećković, Vladimir A., Gnedin, Yurij N., Fuso, Francesco |
| Předmět: |
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| Zdroj: |
Atoms (2218-2004); 2017, Vol. 5 Issue 4, p50, 11p |
| Abstrakt: |
The time-dependent population dynamics of hyperfine (HF) sublevels of n2p3/2 atomic states upon laser excitation in a cold medium of alkali atoms is examined. We demonstrate some peculiarities of the absorption HF multiplet formation in D2-line resulting from a long interaction time (~200 μs) interaction between light and Na (n = 3) and Cs (n = 6) atoms in a cold and slow sub-thermal (T ~ 1K) beam. We analytically describe a number of D2-line-shape effects that are of interest in spectroscopic studies of cold dusty white dwarfs: broadening by optical pumping, intensity redistribution within components of D2-line HF multiplet for partially closed transitions and asymmetry of absorption lines induced by AC Stark shifts for cyclic transitions. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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