Transient fluorescence with a single trapped ion

In this paper, we present a method to measure transient fluorescent dynamics with single trapped ions in Paul trap. We use 40 Ca + that exhibit Λ-type three-level system and the characteristic optical pumping times between ground S 1/2 meta-stable D 3/2 levels. prepare one of these states then pump it opposite via excited P state. By measuring scattered photons ion, retrieve curves atomic fluorescence. These provide fundamental information about system, such as branching fractions excited-state lifetimes, well experimental parameters like efficiency detection saturation parameter transitions. Finally, study time-dependent fluorescence function power detuning lasers find very good agreement simulating open quantum through set Bloch equations. Being able record is particular interest contains temperature, cooling, heating ion.