Experimental Investigation of the Electromagnetically Induced-Absorption-Like Effect for an N-Type Energy Level in a Rubidium BEC

Abstract

We study the electromagnetically induced-absorption-like (EIA-like) effect for an n-type system in an 87 Rb Bose-Einstein condensate (BEC) using the absorption imaging technique for coupling and driving lasers operating at the 𝐷1 and 𝐷2 lines of 87 Rb. The coherent effect is probed by measuring the number of atoms remaining after the BEC is exposed to strong driving fields and a weak probe field. The absorption imaging technique accurately reveals the EIA-like effect of the n-type system. This coherent effect in an n-type system is useful for optical storage, tunable optical switching, and so on.

Magnetic splitting of electromagnetically induced transparency and absorption spectra in a standing-wave coupled lambda-type system

“…The interaction of atoms with laser fields affect the optical properties of the atoms giving rise to many interesting quantum effects. These effects include the EIT [1,2], EIA [3,4], EIG [5][6][7], Hanle effect [8], and many others. In the domain of research, EIT has been used to slow light [9] and stop light [10], to achieve lasing without inversion [11], to perform high resolution atomic spectroscopy [12], to perform all optical switching of laser beams [6] and to store pulses of laser light in thermal vapor of atoms [13], etc.…”