Suppression of Four-Wave Mixing in Hot Rubidium Vapor Using Ladder Scheme Raman Absorption

Abstract

We experimentally investigate the effectiveness of the four-wave mixing suppression in a double-lambda interaction scheme by introducing an additional ladder-type two-photon Raman absorption resonance for one of the optical fields. We propose several possible interaction configurations involving either one or two isotopes of Rb, and experimentally demonstrate the possibility of efficient four-wave mixing suppression in both EIT and far-detuned Raman cases.

5 pages, 8 figure

References in corpus (7)

• Quantum Memories. A Review based on the European Integrated Project "Qubit Applications (QAP)"
• Mapping broadband single-photon wavepackets into an atomic memory
• Interfacing GHz-bandwidth heralded single photons with a room-temperature Raman quantum memory
• Photon storage in Lambda-type optically dense atomic media. IV. Optimal control using gradient ascent
• Electromagnetically induced transparency and four-wave mixing in a cold atomic ensemble with large optical depth
• Hamiltonian design in readout from room-temperature Raman atomic memory
• Realization of Coherent Optically Dense Media via Buffer-Gas Cooling