Fs time-resolved selective control of multilevel systems using optical interference

Abstract

A new selective excitation technique using a superposition of two identical frequency-chirped pulses is demonstrated. By adjusting the time delay between the two pulses, a selected transition of the Rb doublet was brought into the "holes" of the interference pattern and remained nonexcited, thus allowing to manipulate another transition by the laser field as if it is an isolated two-level system.