Measurement of the ^𝟖𝟕Rb[𝟓P_𝟑/𝟐(𝐹^′=𝟑)−𝟓S_𝟏/𝟐(𝐹=𝟐)] Effective Nonradiative Relaxation Rate near a Metallic Film

Figure 5

(a) Integrated 780.2 nm resonance retrofluorescence signal and (b) Integrated vertical fluorescence signal as a function of laser detuning from the resonance center for the 5S_1/2(𝐹 = 2)→5P3/2(𝐹^′ = 1,2,3) transition obtained at a temperature ∼400 K and laser power ∼0.1 mW. (c) Experimental transmission spectrum for a room-temperature sample of ⁸⁷Rb atoms. The horizontal axis is the laser detuning in MHz relative to the 𝐹 = 2→𝐹^′ = 3 transition. Four sub-Doppler features are seen, from the left they are 𝐹 = 2→𝐹^′ = 2, a crossover resonance (𝐹 = 2→𝐹^′ = 3,1), a crossover resonance (𝐹 = 2→𝐹^′ = 3,2), and the transition 𝐹 = 2→𝐹^′ = 3.

(a)

(b)

(c)