https://doi.org/10.1140/epjd/e2003-00069-9
Precise measurement of hyperfine structure in the 5P3/2 state of 85Rb
Department of Physics, Indian Institute of Science, Bangalore 560 012, India
Corresponding author: a vasant@physics.iisc.ernet.in
Received:
6
March
2003
Published online:
15
April
2003
We demonstrate a technique to measure hyperfine structure
using a frequency-stabilized diode laser and an
acousto-optic modulator locked to the frequency difference between
two hyperfine peaks. We use this technique to measure
hyperfine intervals in the 
state of 85Rb
and obtain a precision of 20 kHz. We extract values for
the magnetic-dipole coupling constant A=25.038(5) MHz
and the electric-quadrupole coupling constant
B=26.011(22) MHz. These values are a significant
improvement over previous results.
PACS: 32.10.Fn – Fine and hyperfine structure / 42.55.Px – Semiconductor lasers; laser diodes / 42.62.Fi – Laser spectroscopy
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2003
