engleski

Mapping of the Optical Frequency Comb to the Atom Velocity Comb

We measured the 85, 87Rb(5 2S1/2) hyperfine levels population by monitoring the 5 2S1/2→ 5 2P3/2 probe laser absorption. Modulations in the 5 2S1/2→ 5 2P3/2 hyperfine absorption line profiles are observed as a direct consequence of the velocity selective optical pumping induced by the frequency comb excitation. The 85, 87Rb 5 2S1/2 → 5 2P1/2, 3/2 fs pulse train excitation of a Doppler broadened rubidium vapor was investigated theoretically in the context of the density-matrix formalism.

frequency comb; velocity selective population transfer

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