Zobrazeno 1 - 10
of 30
pro vyhledávání: '"McGilligan, James P."'
Ultracold atoms are crucial for unlocking truly precise and accurate quantum metrology, and provide an essential platform for quantum computing, communication and memories. One of the largest ongoing challenges is the miniaturization of these quantum
Externí odkaz:
http://arxiv.org/abs/2405.21065
Autor:
Bregazzi, Alan, Janin, Paul, Dyer, Sean, McGilligan, James. P., Burrow, Oliver, Riis, Erling, Uttamchandani, Deepak, Bauer, Ralf, Griffin, Paul. F.
We demonstrate the integration of micro-electro-mechanical-systems (MEMS) scanning mirrors as active elements for the local optical pumping of ultra-cold atoms in a magneto-optical trap. A pair of MEMS mirrors steer a focused resonant beam through a
Externí odkaz:
http://arxiv.org/abs/2209.01025
Autor:
Boudot, Rodolphe, McGilligan, James P., Moore, Kaitlin R., Maurice, Vincent, Martinez, Gabriela D., Hansen, Azure, de Clercq, Emeric, Kitching, John
We show that micro-machined non-evaporable getter pumps (NEGs) can extend the time over which laser cooled atoms canbe produced in a magneto-optical trap (MOT), in the absence of other vacuum pumping mechanisms. In a first study, weincorporate a sili
Externí odkaz:
http://arxiv.org/abs/2008.00831
Autor:
Elvin, Rachel, Hoth, Gregory W., Wright, Michael, Lewis, Ben, McGilligan, James P., Arnold, Aidan S., Griffin, Paul F., Riis, Erling
Publikováno v:
Optics Express 27, 38359 (2019)
Clocks based on cold atoms offer unbeatable accuracy and long-term stability, but their use in portable quantum technologies is hampered by a large physical footprint. Here, we use the compact optical layout of a grating magneto-optical trap (gMOT) f
Externí odkaz:
http://arxiv.org/abs/1909.04361
Autor:
McGilligan, James P.
This thesis describes the design, construction and experimental realisationof a cold-atom, atomic clock. Diffractive optics are used to address the size constraints of the typical laser cooling apparatus to facilitate a portable device. The design an
Externí odkaz:
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.723049
Autor:
McGilligan, James P., Griffin, Paul F., Elvin, Rachel, Ingleby, Stuart J., Riis, Erling, Arnold, Aidan S.
Publikováno v:
Scientific Reports 7, Article number: 384 (2017)
We have laser cooled 3$\times10^6$ $^{87}$Rb atoms to 3$\mu$K in a micro-fabricated grating magneto-optical trap (GMOT), enabling future mass-deployment in highly accurate compact quantum sensors. We magnetically trap the atoms, and use Larmor spin p
Externí odkaz:
http://arxiv.org/abs/1702.04150
Publikováno v:
J. Opt. Soc. Am. B 33, 1271-1277 (2016)
We have studied the optical properties of gratings micro-fabricated into semiconductor wafers, which can be used for simplifying cold-atom experiments. The study entailed characterisation of diffraction efficiency as a function of coating, periodicit
Externí odkaz:
http://arxiv.org/abs/1601.07431
Publikováno v:
Optics Express, Vol. 23, Issue 7, pp. 8948-8959 (2015)
We have used diffraction gratings to simplify the fabrication, and dramatically increase the atomic collection efficiency, of magneto-optical traps using micro-fabricated optics. The atom number enhancement was mainly due to the increased beam captur
Externí odkaz:
http://arxiv.org/abs/1503.01702
Akademický článek
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Autor:
Scheuer, Jacob, Shahriar, Selim M., McGilligan, James P., Bregazzi, Alan, Dyer, Sean, Griffin, Paul F., Arnold, Aidan S., Riis, Erling
Publikováno v:
Proceedings of SPIE; March 2022, Vol. 12016 Issue: 1 p120160Y-120160Y-4, 1081445p