Autler-Townes microscopy on a single atom

Localization of a two-level atom via the absorption spectrum

“…These examples involve laser cooling [1], Bose-Einstein condensation [2], and atom lithography [3], and measurement of the center-of-mass wave function of moving atoms [4]. Earlier schemes for the localization include the measurement of the phase shift of either the standing wave [5][6][7] or of the atomic dipole [8] due to the interaction of the atom with the standing wave field, the entanglement between the atom's position and its internal states [9], and resonance imaging methods [10,11].More recently, Zubairy and co-workers proposed a scheme based on Autler-Townes spontaneous spectrum [12,13]. In this scheme a three-level atom is used, in which either of two levels that are involved in spontaneous emission is coupled to the auxiliary level by a classical standing field.…”

Precision localization of single atom via spontaneous emission in three dimensions

“…Zubairy and coworkers have discussed atom localization using resonance fluorescence and phase and amplitude control of the absorption spectrum [14][15][16], and Agarwal and Kapale presented a scheme [17] based on coherent population trapping (CPT). Also, one-dimensional (1D) atom localization can be realized via dual measurement of the field and the atomic internal state [18], double-dark resonance effects [19], phase and amplitude control of the driving field [20,21], coherent manipulation of the Raman gain process [22], or spontaneous emission [23,24]. Recently, atom localization has been demonstrated in a proof-of-principle experiment using the technique of electromagnetically induced transparency (EIT) [25].…”

Two-Dimensional Atom Localization via Controlled Spontaneous Emission in a Coupled Cavity Waveguide

“…Several simple localization schemes have been proposed using such as the resonance fluorescence in a two-level system, the measurement of Autler-Townes split spontaneous emission in a three-level system, and a three-level -type atom interacting with a classical standing-wave field and a weak probe field [4][5][6]. Furthermore, one-dimensional (1D) atom localization can be achieved in Raman gain atoms [7], and coherent population trapping [8][9][10].…”