Abstract
The effect a perturbing field has on an electromagnetically induced transparency within a three-level Λ system is presented. The perturbing field is applied resonant between one of the lower levels of the Λ system and a fourth level. The electromagnetically induced transparency feature is split and this is measured experimentally for both single and bichromatic driving fields. In the single-driving-field case a density matrix treatment is shown to be in reasonable agreement with experiment and in both single and bichromatic cases the structure in the spectrum can be explained using a dressed-state analysis.
Original language | English |
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Article number | 063814 |
Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
Volume | 72 |
Issue number | 6 |
DOIs | |
Publication status | Published - Dec 2005 |