Zobrazeno 1 - 10
of 86
pro vyhledávání: '"McGilligan, J A"'
Autor:
Mrozowski, M. S., Bell, A. S., Griffin, P. F., Hunter, D., Burt, D., McGilligan, J. P., Riis, E., Beggan, C., Ingleby, S. J.
Spatial variation in the intensity of magnetospheric and ionospheric fluctuation during solar storms creates ground-induced currents, of importance in both infrastructure engineering and geophysical science. This activity is currently measured using
Externí odkaz:
http://arxiv.org/abs/2407.15528
Autor:
McWilliam, A. P., Dyer, S., Hunter, D., Mrozowski, M., Ingleby, S. J., Sharp, O., Burt, D. P., Griffin, P. F., McGilligan, J. P., Riis, E.
The microfabrication of cesium vapor cells for optically pumped magnetometry relies on optimization of buffer gas pressure in order to maximize atomic coherence time and sensitivity to external magnetic signals. We demonstrate post-bond nitrogen buff
Externí odkaz:
http://arxiv.org/abs/2406.19178
Autor:
Dyer, S., McWilliam, A., Hunter, D., Ingleby, S., Burt, D. P., Sharp, O., Mirando, F., Griffin, P. F., Riis, E., McGilligan, J. P.
We demonstrate a controllable depletion of the nitrogen buffer gas pressure in a micro-machined cesium (Cs) vapor cell from the dynamic heating of an alkali dispenser pill. When the alkali source is laser activated, the gettering compounds within the
Externí odkaz:
http://arxiv.org/abs/2304.06153
Autor:
Hunter, D., Perrella, C., McWilliam, A., McGilligan, J. P., Mrozowski, M., Ingleby, S. J., Griffin, P. F., Burt, D., Luiten, A. N., Riis, E.
Publikováno v:
Optics Express, vol. 31, issue 20, pp. 33582-33595 (2023)
Magnetic field imaging is a valuable resource for signal source localization and characterization. This work reports an optically pumped magnetometer (OPM) based on the free-induction-decay (FID) protocol, that implements microfabricated cesium (Cs)
Externí odkaz:
http://arxiv.org/abs/2303.10915
Autor:
Dyer, S., Gallacher, K., Hawley, U., Bregazzi, A., Griffin, P. F., Arnold, A. S., Paul, D. J., Riis, E., McGilligan, J. P.
We demonstrate a tuneable, chip-scale wavelength reference to greatly reduce the complexity and volume of cold-atom sensors. A 1 mm optical path length micro-fabricated cell provides an atomic wavelength reference, with dynamic frequency control enab
Externí odkaz:
http://arxiv.org/abs/2212.02853
Laser cooled atoms have proven transformative for precision metrology, playing a pivotal role in state-of-the-art clocks and interferometers, and having the potential to provide a step-change in our modern technological capabilities. To successfully
Externí odkaz:
http://arxiv.org/abs/2208.00680
Autor:
Dyer, S., Griffin, P. F., Arnold, A. S., Mirando, F., Burt, D. P., Riis, E., McGilligan, J. P.
Using a simple and cost-effective water jet process, silicon etch depth limitations are overcome to realize a $6\,$mm deep atomic vapor cell. While the minimum silicon feature size was limited to a $1.5\,$mm width in these first generation vapor cell
Externí odkaz:
http://arxiv.org/abs/2207.12904
Autor:
Bregazzi, A., Griffin, P. F., Arnold, A. S., Burt, D. P., Martinez, G., Boudot, R., Kitching, J., Riis, E., McGilligan, J. P.
We demonstrate a simple stacked scheme that enables absorption imaging through a hole in the surface of a grating magneto-optical trap (GMOT) chip, placed immediately below a micro-fabricated vacuum cell. The imaging scheme is capable of overcoming t
Externí odkaz:
http://arxiv.org/abs/2108.12008
Autor:
McGilligan, J. P., Moore, K. R., Dellis, A., Martinez, G. D., de Clercq, E., Griffin, P. F., Arnold, A. S., Riis, E., Boudot, R., Kitching, J.
Chip-scale atomic devices built around micro-fabricated alkali vapor cells are at the forefront of compact metrology and atomic sensors. We demonstrate a micro-fabricated vapor cell that is actively-pumped to ultra-high-vacuum (UHV) to achieve laser
Externí odkaz:
http://arxiv.org/abs/2005.05818
Autor:
McGilligan, J. P., Moore, K. R., Kang, S., Mott, R., Mis, A., Roper, C., Donley, E. A., Kitching, J.
Publikováno v:
Phys. Rev. Applied 13, 044038 (2020)
We investigate a solid-state, reversible, alkali-ion battery (AIB) capable of regulating the density of alkali atoms in a vacuum system used for the production of laser-cooled atoms. The cold-atom sample can be used with in-vacuum chronoamperometry a
Externí odkaz:
http://arxiv.org/abs/1908.06898