Phys. Rev. Lett. 27, 707–710 (1971)High-Resolution Saturation Spectroscopy of the Sodium D Lines with a Pulsed Tunable Dye LaserReceived 19 July 1971; published in the issue dated 13 September 1971 The sodium D resonance lines have been studied in saturated absorption with a repetitively pulsed tunable dye laser. The hyperfine splitting of the 32S1/2 and 32P1/2 states of Na23 is resolved. Measurements with a delayed probe reveal a remanent hole burning in the velocity distributions of the two ground-state levels, caused by a velocity-selective optical pumping cycle. A time-resolved observation of the collisional-velocity thermalization in the presence of Ar buffer gas is reported. © 1971 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.27.707
DOI:
10.1103/PhysRevLett.27.707
PACS:
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