dorsal/arxiv
View SchemaPrecise fine-structure and hyperfine-structure measurements in Rb
| Authors | Ayan Banerjee, Dipankar Das, Vasant Natarajan |
|---|---|
| Categories | |
| ArXiv ID | physics/0209019 |
| URL | https://arxiv.org/abs/physics/0209019 |
Abstract
We demonstrate a new technique for measuring the absolute frequencies of atomic transitions. The technique uses a ring-cavity resonator whose length is calibrated using a reference laser locked to the D_2 line in {87}Rb. The frequency of this line is known to be 384 230 484.468(10) MHz. Using a second laser locked to the D_1 line of Rb, we measure the frequencies of various hyperfine transitions in the D_1 and D_2 lines with a precision of 30 kHz. We obtain the following values: 120.687(17) MHz and 406.520(25) MHz for the 5P_{1/2} hyperfine constant A in {85}Rb and {87}Rb; 377 107 385.623(50) MHz and 377 107 463.209(50) MHz for the D_1 line in {85}Rb and {87}Rb; and 384 230 406.528(50) MHz for the D_2 line in {85}Rb. This yields the fine-structure interval and the isotope shifts. The precision obtained is a significant improvement over previous measurements.
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"abstract": "We demonstrate a new technique for measuring the absolute frequencies of\natomic transitions. The technique uses a ring-cavity resonator whose length is\ncalibrated using a reference laser locked to the D_2 line in {87}Rb. The\nfrequency of this line is known to be 384 230 484.468(10) MHz. Using a second\nlaser locked to the D_1 line of Rb, we measure the frequencies of various\nhyperfine transitions in the D_1 and D_2 lines with a precision of 30 kHz. We\nobtain the following values: 120.687(17) MHz and 406.520(25) MHz for the\n5P_{1/2} hyperfine constant A in {85}Rb and {87}Rb; 377 107 385.623(50) MHz and\n377 107 463.209(50) MHz for the D_1 line in {85}Rb and {87}Rb; and 384 230\n406.528(50) MHz for the D_2 line in {85}Rb. This yields the fine-structure\ninterval and the isotope shifts. The precision obtained is a significant\nimprovement over previous measurements.",
"arxiv_id": "physics/0209019",
"authors": [
"Ayan Banerjee",
"Dipankar Das",
"Vasant Natarajan"
],
"categories": [
"physics.atom-ph"
],
"title": "Precise fine-structure and hyperfine-structure measurements in Rb",
"url": "https://arxiv.org/abs/physics/0209019"
},
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