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Chinese Physics Letters

Demonstration of a Sagnac-Type Cold Atom Interferometer with Stimulated Raman Transitions

Ping Wang, 李润兵, Hui Yan, 王谨, 詹明生

Published Jan 1, 2007• 0 citations
OpenAlex

Abstract

当他们被用作精确惯性的传感器时， Cold-matter-wave Sagnac 干涉仪在他们的热原子横梁对应物上拥有许多优点。我们与冷原子报导 Sagnac 类型干涉仪的一条认识。冷金如原子在一个磁电机光的陷井被准备并且被反响的激光脉搏推形成慢原子的横梁。在干扰区域，原子波浪包协调地用 π/2-π-π/2 拉曼脉搏序列被操作。有 37% 的最大的对比的干扰穗试验性地被观察。

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当他们被用作精确惯性的传感器时， Cold-matter-wave Sagnac 干涉仪在他们的热原子横梁对应物上拥有许多优点。我们与冷原子报导 Sagnac 类型干涉仪的一条认识。冷金如原子在一个磁电机光的陷井被准备并且被反响的激光脉搏推形成慢原子的横梁。在干扰区域，原子波浪包协调地用 π/2-π-π/2 拉曼脉搏序列被操作。有 37% 的最大的对比的干扰穗试验性地被观察。
Since the first atom interferometry experiments in 1991, measurements of rotation through the Sagnac effect in open-area atom interferometers have been investigated. These studies have demonstrated very high sensitivity that can compete with state-of-the-art optical Sagnac interferometers. Since the early 2000s, these developments have been motivated by possible applications in inertial guidance and geophysics. Most matter-wave interferometers that have been investigated since then are based on two-photon Raman transitions for the manipulation of atomic wave packets. Results from the two most studied configurations, a space-domain interferometer with atomic beams and a time-domain interferometer with cold atoms, are presented and compared. Finally, the latest generation of cold atom interferometers and their preliminary results are presented.