Three-Colour Excitation of D1 Transition in Cold Rubidium Atoms |
| A.M. Alhasan
Institute of Physics, Faculty of Mathematics and Natural Sciences, Pomeranian University in Słupsk, Arciszewskiego 22b, 76-200 Słupsk, Poland |
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| Received: 3 04 2006; Revised version: 13 10 2006; In final form: 19 03 2007; |
| We analyse the three-colour electromagnetically induced transparency for the D1 transition in cold 87Rb atoms. We report an enhancement of the electromagnetically induced emission of a drive field as an exclusive enhancement of the third- and fourth-rank components of the density matrix. Moreover, the gain experienced by the drive field is attributed to the influence of the quantum switching effect on the increased absorption of the probe field. The electromagnetically induced emission effect is employed to generate slow light Gaussian-wave trains with shape preserving. These soliton trains were not only generated in the drive channel as has been designated but also in the switch channel which reveals multiple-light storage phenomenon. |
| DOI: 10.12693/APhysPolA.111.299 PACS numbers: 42.50.Gy, 42.50.Hz, 42.65.-k |