Investigation of Transient Properties of Electromagnetically Induced Transparency with a Strong Probe Laser

The transient properties of electromagnetically induced transparency (EIT) are studied with different probe pulse energies for the first time in the 3S-3P3/2-4D ladder-type three-level system of sodium atom. The EIT effect would be reduced with the increase of the probe pulse energy.Theoretical calculation is carried out by solving the time-dependent matrix equation. The experimental results agree well with the theoretical calculation.