aqora

Radiative Properties of Rydberg Atoms in Resonant Cavities

J. M. Raimond, P. Goy, M. Groß +2 more

Springer series in optical sciences/SPringer series in optical sciencesJan 1, 19830 citations

Radiative Properties of Rydberg Atoms in Resonant Cavities (With 2 Figures)

J. M. Raimond, P. Goy, M. Groß +2 more

Jan 1, 19830 citations

RYDBERG ATOMS AND RADIATION IN A RESONANT CAVITY II. EXPERIMENTS

Claude Fabre, S. Haroche, J. M. Raimond +3 more

We present various experiments involving Rydberg atoms interacting with resonant microwave electromagnetic fields inside a cavity, allowing to check different features of the theory presented in the previous paper. We first describe experiments about superradiant emission by Rydberg states in the cavity, also called transient Rydberg atoms maser ; the evolution of the system is detected either on the populations by selective field ionization technique or on the microwave field itself by heterodyne detection. Very low thresholds, down to 100 atoms, for the maser emission have been observed. We then describe various aspects of collective absorption of radiation by very excited atoms including the observation of Rabi nutation in a small applied resonant field, the study of the quantum efficiency of this set-up considered as a microwave photon counter, and finally the unexpected characteristics of the blackbody radiation absorption in the cavity.We present various experiments involving Rydberg atoms interacting with resonant microwave electromagnetic fields inside a cavity, allowing to check different features of the theory presented in the previous paper. We first describe experiments about superradiant emission by Rydberg states in the cavity, also called transient Rydberg atoms maser ; the evolution of the system is detected either on the populations by selective field ionization technique or on the microwave field itself by heterodyne detection. Very low thresholds, down to 100 atoms, for the maser emission have been observed. We then describe various aspects of collective absorption of radiation by very excited atoms including the observation of Rabi nutation in a small applied resonant field, the study of the quantum efficiency of this set-up considered as a microwave photon counter, and finally the unexpected characteristics of the blackbody radiation absorption in the cavity.

Le Journal de Physique ColloquesNov 1, 19821 citation

The effects of Rydberg atoms in optical cavities

Research FeaturesSep 23, 20210 citations

Radiative cascade between Rydberg atomic states

A. B. Kukushkin, Valerii S. Lisitsa

Zhurnal Eksperimentalnoi i Teoreticheskoi FizikiMay 1, 19852 citations

Rydberg Atoms and Radiation in Cavities–Quantum and Collective Effects

S. Haroche, P. Goy, M. Groß +1 more

Rydberg atoms excited in microwave resonators are ideal systems to test quantum electrodynamics on an unusual scale.1 Owing to their very large electric dipole sizes, these atoms are indeed coupled so strongly to infrared and millimeter-wave radiation that the field of a few photons—ultimately the one of a single photon—stored in a cavity is large enough to induce important transition rates during the atomic time of flight across the cavity. As a result quantum radiative effects are observed in a range of frequencies where usual atomic systems behave as purely classical radiators. The enhancement of the spontaneous emission rate of a single atom prepared in a tuned cavity has already been observed.2 For a resonant cavity with very small losses, a point should be reached where the atom can no longer decay but instead reversibly oscillates between the two states involved in the transition resonant with the cavity mode. Experiments aimed at the observation of this new regime of quantum electrodynamics evolution are under wayRydberg atoms excited in microwave resonators are ideal systems to test quantum electrodynamics on an unusual scale.1 Owing to their very large electric dipole sizes, these atoms are indeed coupled so strongly to infrared and millimeter-wave radiation that the field of a few photons—ultimately the one of a single photon—stored in a cavity is large enough to induce important transition rates during the atomic time of flight across the cavity. As a result quantum radiative effects are observed in a range of frequencies where usual atomic systems behave as purely classical radiators. The enhancement of the spontaneous emission rate of a single atom prepared in a tuned cavity has already been observed.2 For a resonant cavity with very small losses, a point should be reached where the atom can no longer decay but instead reversibly oscillates between the two states involved in the transition resonant with the cavity mode. Experiments aimed at the observation of this new regime of quantum electrodynamics evolution are under way

Jun 18, 19841 citation

Radiative Properties of Rydberg States in Resonant Cavities

Related papers

Radiative Properties of Rydberg States in Resonant Cavities

Related papers