Precise measurement of hyperfine structure in the $5P_{3/2}$ state of $^{85}$Rb

Details Precise measurement of hyperfine structure in the $5P_{3/2}$ state of $^{85}$Rb Precise measurement of hyperfine structure in the $5P_{3/2}$ state of $^{85}$Rb

2003-07-18

arxiv.org/abs/physics/0307090v1

European Physical Journal D 23, 185-188 (2003)

Physics

Atomic Physics

4 pages, 4 figures

Scientific paper

10.1140/epjd/e2003-00069-9

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 $5P_{3/2}$ state of $^{85}$Rb 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.

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