期刊
PHYSICAL REVIEW LETTERS
卷 116, 期 23, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.116.233601
关键词
-
资金
- EU (ERC)
- Region Ile-de-France (LISCOLEM project)
- EPSRC
- Leverhulme Trust
- Triangle de la Physique
- labex PALM ( ECONOMIC project)
- Institut Universitaire de France
- EPSRC [EP/M013294/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/M013294/1] Funding Source: researchfish
We measure the coherent scattering of light by a cloud of laser-cooled atoms with a size comparable to the wavelength of light. By interfering a laser beam tuned near an atomic resonance with the field scattered by the atoms, we observe a resonance with a redshift, a broadening, and a saturation of the extinction for increasing atom numbers. We attribute these features to enhanced light-induced dipole-dipole interactions in a cold, dense atomic ensemble that result in a failure of standard predictions such as the cooperative Lamb shift. The description of the atomic cloud by a mean-field model based on the Lorentz-Lorenz formula that ignores scattering events where light is scattered recurrently by the same atom and by a microscopic discrete dipole model that incorporates these effects lead to progressively closer agreement with the observations, despite remaining differences.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据