A nonadiabatic change of the control field or the low-frequency coherence allows for an almost instantaneous change of the signal field propagating in a thick resonant absorber where electromagnetically induced transparency is realized. This finding is applied for the storage, retrieval, and splitting of the signal into two parts separated by a time interval that is as long as the lifetime of the low-frequency coherence. Pulse shaping is also possible.
Physical Review A
- Pub Date:
- September 2007
- Effects of atomic coherence on propagation absorption and amplification of light;
- electromagnetically induced transparency and absorption;
- Quantum Physics
- 9 pages, 1 figure, submitted to PRL on 18, December, 2006