Atom Interferometry in an Optical Cavity

被引：80

作者：

Hamilton, Paul ^{[1
]}

Jaffe, Matt ^{[1
]}

Brown, Justin M. ^{[1
]}

Maisenbacher, Lothar ^{[1
]}

Estey, Brian ^{[1
]}

Mueller, Holger ^{[1
]}

机构：

[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW LETTERS | 2015年 / 114卷 / 10期

基金：

美国国家科学基金会;

关键词：

CONSTANT; LIGHT;

D O I：

10.1103/PhysRevLett.114.100405

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose and demonstrate a new scheme for atom interferometry, using light pulses inside an optical cavity as matter wave beam splitters. The cavity provides power enhancement, spatial filtering, and a precise beam geometry, enabling new techniques such as low power beam splitters (< 100 mu W), large momentum transfer beam splitters 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, g, to 60 mu g/root Hz resolution in a Mach-Zehnder geometry. We use > 10(7) cesium atoms in the compact mode volume (600 mu m 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, multiaxis interferometry.

引用

页数：6

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