Driving the driven atom: Spectral signatures

Autor:	Zbigniew Ficek, C. C. Yu, Jason R. Bochinski, Thomas W. Mossberg, T. M. V. Kordich
Rok vydání:	1997
Předmět:	Condensed Matter::Quantum Gases Physics Field (physics) Resonance Atomic and Molecular Physics and Optics Spectral line Resonance fluorescence Quantum mechanics Atom Physics::Atomic Physics Emission spectrum Atomic physics Spectroscopy Rabi frequency
Zdroj:	Physical Review A. 56:R4381-R4384
ISSN:	1094-1622 1050-2947
DOI:	10.1103/physreva.56.r4381
Popis:	We have measured the emission spectrum of two-level-like Ba atoms driven by a continuous-wave bichromatic field containing a strong resonant component and a weaker component detuned from atomic resonance by the strong-field Rabi frequency. With the specified detuning, the weak field resonantly drives a transition of the atom–strong-field dressed states. Observed spectra show that each peak of the normal (single-driving-field) resonance fluorescence triplet is split into three subpeaks separated by one-half the weak-field Rabi frequency. Also seen is another triplet of peaks displaced from the atomic resonance by twice the strong-field Rabi frequency. Splitting of the normal triplet peaks can be explained through weak-field dressing of the strong-field dressed states. The origin of the additional triplet is less transparent. Comparison with theory is made.
Databáze:	OpenAIRE
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