Abstract

We have performed zero-field level-crossing resonance measurements (nonlinear Hanle effect) in a metastable Ca atomic beam. By saturating the optical transitions ³P_1,2 → ³S₁, for which the radiative linewidth is 10.5 MHz, we have recorded resonances corresponding to widths of about 31 kHz. The effect has been investigated as a function of the saturating-radiation intensity. The frequency jitter of the laser used in the measurements is about 40 times wider than the recorded widths.

© 1985 Optical Society of America

Ramsey fringes in the nonlinear Hanle effect in a metastable atomic beam

G. Bertuccelli, N. Beverini, M. Galli, M. Inguscio, and F. Strumia
Opt. Lett. 11(6) 351-353 (1986)

Laser spectroscopy using beam-overlap modulation

T. P. Duffey, D. Kammen, A. L. Schawlow, S. Svanberg, H.-R. Xia, G.-G. Xiao, and G.-Y. Yan
Opt. Lett. 10(12) 597-599 (1985)

Effect of optical saturation on hyperfine intensities in optogalvanic spectroscopy

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J. Opt. Soc. Am. B 2(6) 897-902 (1985)

Optical pumping with a frequency-modulated multimode dye laser

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Opt. Lett. 10(3) 119-121 (1985)

Two-step saturated fluorescence detection of atomic hydrogen in flames

J. E. M. Goldsmith
Opt. Lett. 10(3) 116-118 (1985)