Quantum and noninear optics of a cold-atom ring laser with controlled dispersion

色散受控冷原子环激光器的量子和非线性光学

• 批准号: 1820172
• 金额: --
• 依托单位: University of Birmingham
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1820172
• 关键词: Quantum; noninear; optics; cold; atom

We are building a ring laser using a gas of cold atoms as a gain medium, tuning the group index through controlled quantum coherences. In the regime of slow light propagation, such a laser shows reduced sensitivity to environmental perturbations, making it attractive for active time/frequency standards. In the so-called superluminal regime, the lasing wavelength is hypersensitive to rotations via the Sagnac effect, making it promising for next generation gyro navigation systems. However the noise properties of such lasers are not well understood and only preliminary measurements have been made. We will help fill gaps in our understanding of lasing in fast and slow light media, and lay the foundation for future technologies based on their application.

我们正在建造一个环形激光器，使用冷原子气体作为增益介质，通过受控的量子相干来调节群指数。在慢光传播的情况下，这种激光器对环境扰动的敏感性降低，这使得它对有源时间/频率标准很有吸引力。在所谓的超光速状态下，激光波长通过Sagnac效应对旋转非常敏感，使其有望用于下一代陀螺导航系统。然而，这种激光器的噪声特性还没有得到很好的理解，只进行了初步的测量。我们将帮助填补我们在快速和慢速光介质中的激光理解的空白，并为基于其应用的未来技术奠定基础。

项目成果

Why material slow light does not improve cavity-enhanced atom detection (vol 65, pg 723, 2018)

为什么材料慢光不能改善腔增强原子检测（第 65 卷，第 723 页，2018 年）

• 发表时间: 2018
• 期刊: JOURNAL OF MODERN OPTICS
• 影响因子: 1.3
• 作者: Megyeri B.

Directional Bistability and Nonreciprocal Lasing with Cold Atoms in a Ring Cavity.

• DOI: 10.1103/physrevlett.121.163603
• 发表时间: 2018-10
• 期刊: Physical review letters
• 影响因子: 8.6
• 作者: B. Megyeri;G. Harvie;A. Lampis;J. Goldwin

Why material slow light does not improve cavity-enhanced atom detection

为什么材料慢光不能改善腔增强原子检测

• DOI: 10.1080/09500340.2017.1384512
• 发表时间: 2017
• 期刊: Journal of Modern Optics
• 影响因子: 1.3
• 作者: Megyeri B