Four-Wave Mixing in Ultracold Atoms using Intermediate Rydberg States

Abstract

Ultracold Rb atoms were used to demonstrate non-degenerate four-wave mixing through a Rydberg state. Continuous 5S-5P-nD two-photon excitation to the Rydberg state was combined with an nD-6P tuned laser in a phase matched geometry. The angular dependence, spatial profile, and dependence on detuning were investigated, showing good agreement with theory. Under optimum conditions 50 percent of the radiation was emitted into the phase-matched direction.

4 pages, 6 figures

References in corpus (7)

• Evidence for coherent collective Rydberg excitation in the strong blockade regime
• Consequences of Zeeman Degeneracy for van der Waals Blockade between Rydberg Atoms
• Rabi flopping between ground and Rydberg states with dipole-dipole atomic interactions
• Rydberg excitation of Bose-Einstein condensates
• Rabi oscillations and excitation trapping in the coherent excitation of a mesoscopic frozen Rydberg gas
• Electromagnetically induced transparency of an interacting cold Rydberg ensemble
• Dynamics of Low-Density Ultracold Rydberg Gases

Cited by in corpus (10)

• Quantum information with Rydberg atoms
• Dipole blockade in a cold Rydberg atomic sample
• Universal scaling in a strongly interacting Rydberg gas
• Microwave-to-optical conversion via four-wave-mixing in a cold ytterbium ensemble
• Parametric four-wave mixing using a single cw laser
• Optical cavity for enhanced parametric four-wave mixing in rubidium
• Excitation Suppression Due to Interactions Between Microwave-Dressed Rydberg Atoms
• Phase matching alters spatial multiphoton processes in dense atomic ensembles
• Saturation and alternate pathways in four-wave mixing in rubidium
• Dipole blockade without dipole-dipole interaction