High Phase-Space Density of Laser-Cooled Molecules in an Optical Lattice

被引：40

作者：

Wu, Yewei ^{[1
]}

Burau, Justin J.

Mehling, Kameron

Ye, Jun

Ding, Shiqian ^{[2
]}

机构：

[1] NIST, JILA, Boulder, CO 80309 USA

[2] Ludwig Maximilians Univ Munchen, Coulombwall 1, D-85748 Garching, Germany

来源：

PHYSICAL REVIEW LETTERS | 2021年 / 127卷 / 26期

关键词：

REACTIVE MOLECULES;

D O I：

10.1103/PhysRevLett.127.263201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report laser cooling and trapping of yttrium monoxide molecules in an optical lattice. We show that gray molasses cooling remains exceptionally efficient for yttrium monoxide molecules inside the lattice with a molecule temperature as low as 6.1(6) mu K. This approach has produced a trapped sample of 1200 molecules, with a peak spatial density of similar to 1.2 x 10(10) cm(-3), and a peak phase-space density of similar to 3.1 x 10(-6). By ramping down the lattice depth, we cool the molecules further to 1.0(2) mu K, 20 times colder than previously reported for laser-cooled molecules in a trap.

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页数：6

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