Coupling of four-wave mixing and Raman scattering by ground-state atomic coherence
Abstract
We demonstrate coupling of light resonant to transition between two excited states of rubidium and long-lived ground-state atomic coherence. In our proof-of-principle experiment a nonlinear process of four-wave mixing is used to achieve light emission proportional to independently prepared ground-state atomic coherence. Strong correlations between stimulated Raman-scattering light heralding the generation of ground-state coherence and the four-wave mixing signal are measured and shown to survive the storage period, which is promising in terms of quantum memory applications. The process is characterized as a function of laser detunings.
- Publication:
-
Physical Review A
- Pub Date:
- May 2016
- DOI:
- 10.1103/PhysRevA.93.053821
- arXiv:
- arXiv:1512.00385
- Bibcode:
- 2016PhRvA..93e3821P
- Keywords:
-
- Physics - Atomic Physics;
- Physics - Optics;
- Quantum Physics
- E-Print:
- 7 pages, 7 figures