Simple atomic systems in resonant laser fields

Lampros A. A. Nikolopoulos

Young-Tak Chough, Hee-Jong Moon, Hyunchul Nha +1 more

We propose a scheme of a one-atom laser which produces a cavity-field virtually in a stationary Fock state. It is based upon the unexpectedly simple dynamics of the Jaynes-Cummings system at multiphoton resonances at far-off resonance. We find that an anomalously high cavity mode excitation occurs at a particular set of atomic, cavity, and driving-field frequencies.

Claude N. Cohen-Tannoudji, Serge Reynaud

A dressed-atom approach to resonance fluorescence in intense laser fields is presented. Simple and general results are derived which include the now well known predictions concerning two-level atoms but are not restricted to such simple cases. The positions of the various components of the fluorescence and absorption spectra are given by the allowed Bohr frequencies of the total system: atom+laser mode (dressed atom). The master equation, describing spontaneous emission from the dressed atom is solved in the limit of high intensities. Simple expressions, taking into account the effect of cascades, are derived for the widths of the components.

Nikolai L. Manakov, Vitalii D Ovsiannikov, Л. П. Рапопорт

W. W. Smith, Chris Harvey, J. E. Stewart +8 more

Mikhail L. Ter-Mikhaelyan

The interaction of simple, two- and three-level atomic systems with monochromatic and nonmonochromatic laser radiation near resonance transitions is discussed based on the Schroedinger equation with radiation decay and no collisional relaxation, outside the framework of the usual perturbation theory. The mathematical schemes employed include the resonance approximation, exact methods, the quasi-energy method, the adiabatic approximation, etc. A large number of physical phenomena, such as oscillating and inverted populations, self-induced resonances, processes of first order in the weak field, Raman scattering, coherent population transfer, etc. are considered. The review is intended for a broad readership.