Site-resolved imaging of ytterbium atoms in a two-dimensional optical lattice

被引：65
|
作者：
Miranda, Martin [1 ]
Inoue, Ryotaro [1 ]
Okuyama, Yuki [1 ]
Nakamoto, Akimasa [1 ]
Kozuma, Mikio [1 ]
机构：
[1] Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 1528550, Japan
来源：
PHYSICAL REVIEW A | 2015年 / 91卷 / 06期
基金：
日本学术振兴会;
关键词：
MOTT INSULATOR; GROUND-STATE; MICROSCOPE;
D O I：
10.1103/PhysRevA.91.063414
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report a high-resolution microscope system for imaging ultracold ytterbium atoms trapped in a two-dimensional optical lattice. By using the ultraviolet strong transition combined with a solid immersion lens and high-resolution optics, our system resolved individual sites in an optical lattice with a 544-nm spacing. Without any cooling mechanism during the imaging process, the deep potential required to contain the atoms was realized using a combination of a shallow ground-state and a deep excited-state potentials. The lifetime and limitations of this setup were studied in detail.
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页数：6
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