Vector light enhanced atomic magnetometry

矢量光增强原子磁力测量

• 批准号: EP/Z000513/1
• 负责人: Sonja Franke-Arnold
• 金额: $ 33.36万
• 依托单位: University of Glasgow
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2024
• 资助国家: 英国
• 起止时间: 2024 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FZ000513%2F1
• 关键词: Vector; light; enhanced; atomic; magnetometry

Optically pumped magnetometers present an attractive technological alternative to cryogenic, superconducting magnetic field sensors. They make use of the unique sensitivity of, for example, alkali atoms to optical and magnetic fields and operate by generating atomic polarization with polarised light and measuring its response to the magnetic field. This project merges the research fields of quantum magnetometry and structured light: We will develop magnetometers that are pumped with structured vector light and demonstrate the resulting temporal and spatial information enhancement. We will use state-of-the-art technology to design vector light correlated in its spatial and polarisation degrees of freedom, allowing us to imprint spatially varying optical polarisation onto spatially varying atomic spin polarisations. This project aims to explore and demonstrate the resulting extended functionality compared to conventional optically pumped atomic magnetometers, addressing the following challenges: the capability to measure 3D vector magnetic field direction in a single-axis geometry, to distinguish between bias and gradient magnetic fields, and to detect time-varying magnetic fields. Our consortium comprises 5 academic partners, 2 national labs and a deep tech company with expertise in magnetometry, structured light, optical platforms and modelling. The project will strengthen competitiveness and leadership of Quantum Technology in Europe by translating scientific concepts into user-friendly devices with wide-ranging applications in the life, physical and geosciences, which will be tested in a full field environment against real time operational scientific geomagnetic sensors.

光泵磁力计为低温超导磁场传感器提供了一种极具吸引力的技术替代方案。例如，它们利用碱原子对光场和磁场的独特敏感性，通过用偏振光产生原子偏振并测量其对磁场的响应来运行。该项目融合了量子磁学和结构光的研究领域：我们将开发用结构矢量光泵浦的磁力计，并展示由此产生的时间和空间信息增强。我们将使用最先进的技术来设计空间和偏振自由度相关的矢量光，使我们能够在空间变化的原子自旋偏振上印记空间变化的光学偏振。该项目旨在探索和演示与传统光泵原子磁强计相比所产生的扩展功能，解决以下挑战：测量单轴几何形状的3D矢量磁场方向、区分偏置磁场和梯度磁场以及检测时变磁场的能力。我们的财团由5个学术合作伙伴、2个国家实验室和一家深度技术公司组成，该公司拥有磁测量、结构光、光学平台和建模方面的专业知识。该项目将通过将科学概念转化为用户友好的设备，在生活、物理和地球科学中广泛应用，加强量子技术在欧洲的竞争力和领导地位，这些设备将在全野外环境中针对实时运行的科学地磁传感器进行测试。