Banerjee, A and Rapol, UD and Das, D and Krishna, A and Natarajan, V (2003) Precise measurements of UV atomic lines: Hyperfine structure and isotope shifts in the 398.8 $\un{nm}$ line of $\chem{Yb}$. In: Europhysics Letters, 63 (3). pp. 340-346.
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Abstract
We demonstrate a technique for frequency measurements of UV transitions with sub-MHz precision. The frequency is measured using a ring-cavity resonator whose length is calibrated against a reference laser locked to the $D_2$ line of $^{87}Rb$. We have used this to measure the 398.8 nm ${^1S}_0 \leftrightarrow {^1P}_1$ line of atomic Yb. We report isotope shifts of all the seven stable isotopes, including the rarest isotope $^{168}Yb$. We have been able to resolve the overlapping $^{173}Yb$($F = 3/2$) and $^{172}Yb$ transitions for the first time. We also obtain high-precision measurements of excited-state hyperfine structure in the odd isotopes, $^{171}Yb$ and $^{173}Yb$. The measurements resolve several discrepancies among earlier measurements.
Item Type: | Journal Article |
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Publication: | Europhysics Letters |
Publisher: | EDP Sciences |
Additional Information: | The Copyright belongs EDP Sciences. |
Department/Centre: | Division of Physical & Mathematical Sciences > Physics |
Date Deposited: | 09 May 2006 |
Last Modified: | 19 Sep 2010 04:26 |
URI: | http://eprints.iisc.ac.in/id/eprint/6647 |
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