Phys. Rev. A 52, 4447–4450 (1995)Hyperfine-structure measurements in the 4p 2P3/2 state of 41K using polarization quantum-beat spectroscopyReceived 28 April 1995; published in the issue dated December 1995 A pump-and-probe approach was used to investigate polarization quantum beats resulting from hyperfine interactions in the resonant 4p 2P3/2 level of 41K. Coherent time evolution of the electronic polarization was observed over eight radiative lifetimes of the 4p 2P3/2 level. Analytical expressions for the resulting polarization beat signals were fitted to the data to determine the magnetic-dipole constant, A=3.325(15) MHz, and the electric-quadrupole constant, B=3.230(23) MHz. These results represent an improvement of about one order of magnitude over previous measurements. © 1995 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.52.4447
DOI:
10.1103/PhysRevA.52.4447
PACS:
32.10.Fn, 32.30.-r, 32.80.-t, 42.62.Fi
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