Sub-Doppler cooling of ytterbium with the 1S0-1P1 transition including 171Yb (I=1/2)

被引：8

作者：

Kostylev, N. ^{[1
]}

Ivanov, E. ^{[1
]}

Tobar, M. E. ^{[1
]}

McFerran, J. J. ^{[1
]}

机构：

[1] Univ Western Australia, Sch Phys, Crawley 6009, Australia

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2014年 / 31卷 / 07期

基金：

澳大利亚研究理事会;

关键词：

POLARIZATION GRADIENTS; ATOMS; LIMIT;

D O I：

10.1364/JOSAB.31.001614

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on the sub-Doppler laser cooling of neutral Yb-171 and Yb-173 in a magneto-optical trap (MOT) using the S-1(0)-P-1(1) transition at 398.9 nm. We use two independent means to estimate the temperature of the atomic cloud for several of the Yb isotopes. The two methods of MOT cloud imaging and release-and-recapture show consistency with one another. Temperatures below 400 and 200 K are recorded for Yb-171 and Yb-173, respectively, while similar to 1 mK is measured for both Yb-172 and Yb-174. By comparison, the associated one-dimensional Doppler cooling temperature limit is 694 mu K. The sub-Doppler cooling of the I = 1/2 Yb-171 isotope in a sigma(+) -sigma(-) light-field trap adds further evidence that the Sisyphus cooling mechanism is occurring in such three-dimensional MOTs. (C) 2014 Optical Society of America

引用

页码：1614 / 1620

页数：7

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