A5077150473- Atomic and Subatomic Physics Research
- Cold Atom Physics and Bose-Einstein Condensates
- Magnetic Properties of Alloys
- Quantum, superfluid, helium dynamics
- Magnetic and transport properties of perovskites and related materials
- Electric Motor Design and Analysis
- Magnetic Field Sensors Techniques
- Superconducting Materials and Applications
- Groundwater flow and contamination studies
- Advanced MRI Techniques and Applications
- Reservoir Engineering and Simulation Methods
- Inertial Sensor and Navigation
- Image Processing and 3D Reconstruction
- Archaeology and Natural History
- Particle accelerators and beam dynamics
- Ionosphere and magnetosphere dynamics
- Geological Modeling and Analysis
- Hydrology and Watershed Management Studies
- Magnetic confinement fusion research
- Advanced Frequency and Time Standards
University of Nottingham
2021-2024
Clarkson University
2011
Magnetically sensitive experiments and newly developed quantum technologies with integrated high-permeability magnetic shields require increasing control of their field environment reductions in size, weight, power, cost. However, fields generated by active components are distorted shielding, particularly when they close to the shield’s surface. Here, we present an efficient design methodology for creating desired static profiles using discrete coils electromagnetically coupled a cylindrical...
Here, a benchtop hybrid magnetic shield containing four mumetal cylinders and nine internal flexible printed circuit boards is designed, constructed, tested, operated. The designed specifically as test-bed for building operating ultra-sensitive quantum magnetometers. geometry spacing of the are optimized to maximize shielding efficiency while maintaining Johnson noise < 15 fT/ √ Hz. Experimental measurements at shield's center show passive (1.0 ± 0.1)×10 <sup...
Inertial sensors that measure the acceleration of ultracold atoms promise unrivalled accuracy compared to classical equivalents. However, atomic systems are sensitive various perturbations, including magnetic fields, which can introduce measurement inaccuracies. To address this challenge, we have designed, manufactured, and validated a field stabilisation system for quantum sensor based on atom interferometry. We solve generated by surface currents in-between pair bi-rectangular coils...
The accurate control of magnetic fields is a cornerstone multiple emerging quantum technologies. These technologies often require passive high permeability shielding and internal active field-generating coils to create their own bespoke field landscape. However, generated by are distorted shielding, preventing the efficient generation desired environment. Here, we design cylindrical four-layer shield with an interior hybrid active-passive coil system that explicitly optimised include...
We present a target field approach to analytically design magnetic fields using permanent magnets. assume that their magnetisation is bound two-dimensional surface and composed of complete basis modes. By posing the Poisson's equation relating scalar potential Green's functions, we derive simple integrals which determine generated by each mode. This demonstrated deriving governing for optimising axial on cylindrical circular-planar surfaces. approximate numerically implement them into...
We present a target-field approach to analytically design magnetic fields using permanent magnets. assume that their magnetization is bound two-dimensional surface and composed of complete basis modes. By posing the Poisson’s equation relating scalar potential Green’s functions, we derive simple integrals determine field generated by each mode. This demonstrated deriving governing for optimizing axial on cylindrical circular-planar surfaces. approximate numerically implement them into...
Adaptable, low-cost, coils designed by carefully selecting the arrangements and geometries of simple primitive units are used to generate magnetic fields for diverse applications. These extend from resonance fundamental physics experiments active shielding quantum devices including magnetometers, interferometers, clocks, computers. However, finding optimal multiple structures is time-intensive it challenging account additional constraints, e.g. optical access, during design process. Here, we...
Adaptable, low-cost, coils designed by carefully selecting the arrangements and geometries of simple primitive units are used to generate magnetic fields for diverse applications. These extend from resonance fundamental physics experiments active shielding quantum devices including magnetometers, interferometers, clocks, computers. However, finding optimal multiple structures is time-intensive it challenging account additional constraints, e.g. optical access, during design process. Here, we...
Inertial sensors that measure the acceleration of ultracold atoms promise unrivalled accuracy compared to classical equivalents. However, atomic systems are sensitive various perturbations, including magnetic fields, which can introduce measurement inaccuracies. To address this challenge, we have designed, manufactured, and validated a field stabilisation system for quantum sensor based on atom interferometry. We solve generated by surface currents in-between pair rectangular coils...
Here, a benchtop hybrid magnetic shield containing four mumetal cylinders and nine internal flexible printed circuit boards is designed, constructed, tested, operated. The designed specifically as test-bed for building operating ultra-sensitive quantum magnetometers. geometry spacing of the are optimized to maximize shielding efficiency while maintaining Johnson noise $<15$ fT/$\sqrt{}$Hz. Experimental measurements at shield's center show passive $\left(1.0\pm0.1\right){\times}10^6$ $0.2$ Hz...