Velocity Selective Optical Pumping of Rb Hyperfine Lines Induced by a Train of Femtosecond Pulses

Journal Article · Fri Dec 02 00:00:00 EST 2005 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.95.233001· OSTI ID:20699647

Aumiler, D; Ban, T; Skenderovic, H; Pichler, G ^[1]

---

1. Institute of Physics, Bijenicka 46, Zagreb (Croatia)

We present direct observation of the velocity-selective optical pumping of the Rb ground state hyperfine levels induced by 5S{sub 1/2}{yields}5P{sub 1/2} femtosecond pulse-train excitation. A modified direct frequency comb spectroscopy based on the fixed frequency comb and a weak cw scanning probe laser was developed. The femtosecond pulse-train excitation of a Doppler-broadened Rb four-level atomic vapor is investigated theoretically in the context of the density matrix formalism and the results are compared with the experiment.

• OSTI ID: 20699647
• Journal Information: Physical Review Letters, Vol. 95, Issue 23; Other Information: DOI: 10.1103/PhysRevLett.95.233001; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
DENSITY MATRIX
DOPPLER BROADENING
EXCITATION
GROUND STATES
HYPERFINE STRUCTURE
OPTICAL PUMPING
PULSES
RUBIDIUM
SPECTROSCOPY
VAPORS
VELOCITY