All-optical transport and compression of ytterbium atoms into the surface of a solid immersion lens
All-optical transport and compression of ytterbium atoms into the surface of a solid immersion lens
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镱原子的全光传输和压缩到固体浸没透镜的表面
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
M. Kozuma
中科院分区：
文献类型：
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作者：
M. Miranda;A. Nakamoto;Y. Okuyama;A. Noguchi;M. Ueda;M. Kozuma
我们提出了一种全光学方法，将174Yb原子加载到靠近固体浸没透镜表面的单层光学陷阱中，从而提高了显微镜系统的数值孔径。使用由三个光学偶极子阱组成的系统，原子被传输到表面以下20微米的区域。“光学手风琴”技术被用来制造一种冷凝物，并将原子压缩到120纳米的宽度，距离表面1.8微米。此外，我们能够验证压缩后的冷凝物表现为二维量子气体。
We present an all-optical method to load 174Yb atoms into a single layer of an optical trap near the surface of a solid immersion lens which improves the numerical aperture of a microscope system. Atoms are transported to a region 20 um below the surface using a system comprised by three optical dipole traps. The "optical accordion" technique is used to create a condensate and compress the atoms to a width of 120 nm and a distance of 1.8 um away from the surface. Moreover, we are able to verify that after compression the condensate behaves as a two-dimensional quantum gas.