High-resolution spectroscopy of hyperfine Zeeman components in a sodium atomic vapor has been performed by a coherent population trapping (CPT) technique. The measurement features the simple configuration of a single laser source with a frequency-swept double-pass acousto-optic modulator. Well-resolved CPT dip signals in the presence of longitudinal or transverse static magnetic fields can be nicely explained by a theory based on two-photon resonance.
© 2002 Optical Society of America
(020.1670) Atomic and molecular physics : Coherent optical effects
(020.7490) Atomic and molecular physics : Zeeman effect
(270.1670) Quantum optics : Coherent optical effects
(300.6320) Spectroscopy : Spectroscopy, high-resolution
(300.6420) Spectroscopy : Spectroscopy, nonlinear
Koji Motomura and Masaharu Mitsunaga, "High-resolution spectroscopy of hyperfine Zeeman components of the sodium D1 line by coherent population trapping," J. Opt. Soc. Am. B 19, 2456-2460 (2002)