arXiv 1409.71302014-09-25physics.atom-phquant-ph

光腔中的原子干涉

Atom interferometry in an optical cavity

Paul Hamilton, Matt Jaffe, Justin M. Brown, Lothar Maisenbacher, Brian Estey, Holger Müller

备注：: 5 pages, 6 figures
发表信息：: Phys. Rev. Lett. 114, 100405 (2015)
DOI：: 10.1103/PhysRevLett.114.100405

摘要：

我们提出并论证了一种新的原子干涉方案，利用光腔中的光脉冲作为物质波分束器。该腔提供功率增强、空间滤波和精确的光束几何形状，从而实现诸如低功率分束器（$<100 \mathrm{μW}$）、具有适度功率的大动量传递分束器或利用光学腔的横模的新的自对准干涉仪几何形状的新技术。作为第一个演示，我们获得拉姆齐拉曼条纹与$>75\%$对比度和测量由于重力，$\mathit{g}$，$60 \mathrm{μ\mathit{g} / \sqrt{Hz}}$分辨率在马赫-曾德尔几何的加速度。我们使用$>10^7$铯原子在紧凑的模式体积（$600 \mathrm{μm}$ $1/e^2$腰）的腔，并显示捕获的原子在较高的横模。这项工作铺平了道路走向紧凑，高灵敏度，多轴干涉测量。

英文摘要：

We propose and demonstrate a new scheme for atom interferometry, using light pulses inside an optical cavity as matter wave beamsplitters. The cavity provides power enhancement, spatial filtering, and a precise beam geometry, enabling new techniques such as low power beamsplitters ($<100 \mathrm{μW}$), large momentum transfer beamsplitters with modest power, or new self-aligned interferometer geometries utilizing the transverse modes of the optical cavity. As a first demonstration, we obtain Ramsey-Raman fringes with $>75\%$ contrast and measure the acceleration due to gravity, $\mathit{g}$, to $60 \mathrm{μ\mathit{g} / \sqrt{Hz}}$ resolution in a Mach-Zehnder geometry. We use $>10^7$ cesium atoms in the compact mode volume ($600 \mathrm{μm}$ $1/e^2$ waist) of the cavity and show trapping of atoms in higher transverse modes. This work paves the way toward compact, high sensitivity, multi-axis interferometry.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

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