Precise measurement of hyperfine structure in the state of Rb |
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| Authors: | UD Rapol A Krishna V Natarajan |
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| Institution: | (1) Department of Physics, Indian Institute of Science, Bangalore 560 012, India, IN |
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| Abstract: | 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
5
P
3/2
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.
Received 6 March 2003 Published online 15 April 2003 |
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| Keywords: | PACS 32 10 Fn Fine and hyperfine structure – 42 55 Px Semiconductor lasers laser diodes – 42 62 Fi Laser spectroscopy |
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