Publication

Rapid axial loading of a grating MOT with a cold-atom beam
EPJ Quantum Technology (2026)
Laser-cooled atoms are increasingly being used to realise practical quantum devices, motivating the development of compact and robust …
R. Cannon, A. Arnold, P. Griffin, E. Riis, O. Burrow
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A compact high-flux grating chip cold atom source
New Journal of Physics 27, (2025)
Diffraction gratings have simplified the optical implementation of magneto-optical traps (MOTs) to require only a single input beam, …
H. Heine, A. S. Arnold, M. S. Le Gonidec, P. F. Griffin, E. Riis, W. Herr, E. M. Rasel
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Single-beam grating-chip 3D and 1D optical lattices
Physical Review Letters 134, (2025)
Ultracold atoms are crucial for unlocking truly precise and accurate quantum metrology and provide an essential platform for quantum …
A. Bregazzi, J. P. McGilligan, P. F. Griffin, E. Riis, A. S. Arnold
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A cold-atom Ramsey clock with a low volume physics package
Scientific Reports 14, (2024)
We demonstrate a Ramsey-type microwave clock interrogating the 6.835 GHz ground-state transition in cold 87Rb atoms loaded from a …
A. Bregazzi, E. Batori, B. Lewis, C. Affolderbach, G. Mileti, E. Riis, P. Griffin
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Optimal binary gratings for multi-wavelength magneto-optical traps
Optics Express 31, 40871–40880 (2023)
Grating magneto-optical traps are an enabling quantum technology for portable metrological devices with ultracold atoms. However, beam …
O. S. Burrow, R. J. Fasano, W. Brand, M. W. Wright, W. Li, A. D. Ludlow, E. Riis, P. F. Griffin, A. S. Arnold
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Chip-Scale Packages for a Tunable Wavelength Reference and Laser Cooling Platform
Physical Review Applied 19, 044015 (2023)
S. Dyer, K. Gallacher, U. Hawley, A. Bregazzi, P. Griffin, A. Arnold, D. Paul, E. Riis, J. McGilligan
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A grating-chip atomic fountain
Applied Physics Letters 121, 164001 (2022)
Cold atom fountain clocks provide exceptional long term stability as they increase interrogation time at the expense of a larger size. …
B. Lewis, R. Elvin, A. S. Arnold, E. Riis, P. F. Griffin
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Micro-machined deep silicon atomic vapor cells
Journal of Applied Physics 132, 134401 (2022)
Using a simple and cost-effective water jet process, silicon etch depth limitations are overcome to realize a 6 mm deep atomic vapor …
S. Dyer, P. F. Griffin, A. S. Arnold, F. Mirando, D. P. Burt, E. Riis, J. P. McGilligan
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Micro-fabricated components for cold atom sensors
Review of Scientific Instruments 93, 091101 (2022)
Laser cooled atoms have proven transformative for precision metrology, playing a pivotal role in state-of-the-art clocks and …
J. P. McGilligan, K. Gallacher, P. F. Griffin, D. J. Paul, A. S. Arnold, E. Riis
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A simple imaging solution for chip-scale laser cooling
Applied Physics Letters 119, 184002 (2021)
We demonstrate a simple stacked scheme that enables absorption imaging through a hole in the surface of a grating magneto-optical trap …
A. Bregazzi, P. F. Griffin, A. S. Arnold, D. P. Burt, G. Martinez, R. Boudot, J. Kitching, E. Riis, J. P. McGilligan
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