The UK National Quantum Technologies Hub in sensors and metrology (Keynote Paper)

Bongs, Kai; Boyer, Vincent; Cruise, M.; Freise, A.; Holynski, Michael; Hughes, James W.; Kaushik, Aisha; Lien, Yu-Hung; Niggebaum, Alexander; Perea-Ortiz, Marisa; Petrov, Plamen G.; Plant, Simon R.; Singh, Yeshpal; Stabrawa, Artur; Paul, Douglas J.; Sorel, Marc; Cumming, David R. S.; Marsh, J.H.; Bowtell, Richard; Bason, M. G.; Beardsley, R.; Campion, R. P.; Brookes, Matthew J.; Fernholz, T.; Fromhold, T. M.; Hackermüller, Lucia; Krüger, Peter; Li, X.; Maclean, J.O.; Mellor, C.J.; Новиков, С. В.; Oručević, Fedja; Rushforth, A. W.; Welch, Nathan; Benson, T.M.; Wildman, Ricky D.; Freegarde, Tim; Himsworth, Matthew; Ruostekoski, Janne; Smith, Peter G. R.; Tropper, A.C.; Griffin, Paul F.; Arnold, Aidan S.; Riis, Erling; Hastie, Jennifer E.; Pabœuf, David; Parrotta, Daniele C.; Garraway, Barry M.; Pasquazi, Alessia; Peccianti, Marco; Hensinger, W. K.; Potter, E. C.; Nizamani, Altaf H.; Bostock, H.; Blanco, Almudena; Sinuco-León, German A.; Hill, Ian R.; Williams, R. A.; Gill, P.; Hempler, Nils; Malcolm, Graeme P. A.; Cross, Tsali; Kock, B. O.; Maddox, Scott J.; John, Pamela M. St.

doi:10.1117/12.2232143

Cited by 12 publications

(6 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A resonant imaging beam (F = 2 → F' = 3) is then coupled into one of the vertical beams (z-axis) to generate absorption images [26, 3.2] of the various atom clouds. Our fully fiberised set up is immediately ready for a replacement of our commercial laser sources by integrated miniature systems as are becoming readily available at the moment [30].…”

Section: Appendix B: Light Frequency Manipulationmentioning

confidence: 99%

3D-printed components for quantum devices

Saint

Evans

Zhou

et al. 2018

Sci Rep

Self Cite

View full text Add to dashboard Cite

Recent advances in the preparation, control and measurement of atomic gases have led to new insights into the quantum world and unprecedented metrological sensitivities, e.g. in measuring gravitational forces and magnetic fields. The full potential of applying such capabilities to areas as diverse as biomedical imaging, non-invasive underground mapping, and GPS-free navigation can only be realised with the scalable production of efficient, robust and portable devices. We introduce additive manufacturing as a production technique of quantum device components with unrivalled design freedom and rapid prototyping. This provides a step change in efficiency, compactness and facilitates systems integration. As a demonstrator we present an ultrahigh vacuum compatible ultracold atom source dissipating less than ten milliwatts of electrical power during field generation to produce large samples of cold rubidium gases. This disruptive technology opens the door to drastically improved integrated structures, which will further reduce size and assembly complexity in scalable series manufacture of bespoke portable quantum devices.

show abstract

Section: Appendix B: Light Frequency Manipulationmentioning

confidence: 99%

3D-printed components for quantum devices

Saint

Evans

Zhou

et al. 2018

Sci Rep

Self Cite

View full text Add to dashboard Cite

show abstract

“…An atomic clock benefiting from laser cooling -with drastically reduced size, weight, power and complexitywould prove valuable for operations outside the laboratory environment [18] and act as an important stepping stone toward the realisation of many precision sensors.…”

mentioning

confidence: 99%

Cold-atom clock based on a diffractive optic

et al. 2019

Self Cite

View full text Add to dashboard Cite

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) for a precise frequency reference. The gMOT collects 10 7 87 Rb atoms, which are subsequently cooled to 20 µK in optical molasses. We optically probe the microwave atomic ground-state splitting using lin⊥lin polarised coherent population trapping and a Raman-Ramsey sequence. With ballistic drop distances of only 0.5 mm, the measured short-term fractional frequency stability is 2 × 10 −11 / √ τ , with prospects for 2 × 10 −13 / √ τ at the quantum projection noise limit.arXiv:1909.04361v1 [physics.atom-ph]

show abstract

“…The locking technique described here could aid the development of portable atom-based quantum technologies 31 due to the small footprint and insensitivity to misalignment. The speckle-based stabilization is a convenient method to lock at arbitrary detuning from an atomic resonance, such as the tens of gigahertz typically required in atom interferometry experiments 32 .…”

Section: Discussionmentioning

confidence: 99%

Harnessing speckle for a sub-femtometre resolved broadband wavemeter and laser stabilization

et al. 2017

View full text Add to dashboard Cite

The accurate determination and control of the wavelength of light is fundamental to many fields of science. Speckle patterns resulting from the interference of multiple reflections in disordered media are well-known to scramble the information content of light by complex but linear processes. However, these patterns are, in fact, exceptionally rich in information about the illuminating source. We use a fibre-coupled integrating sphere to generate wavelength-dependent speckle patterns, in combination with algorithms based on the transmission matrix method and principal component analysis, to realize a broadband and sensitive wavemeter. We demonstrate sub-femtometre wavelength resolution at a centre wavelength of 780 nm, and a broad calibrated measurement range from 488 to 1,064 nm. This compares favourably to the performance of conventional wavemeters. Using this speckle wavemeter as part of a feedback loop, we stabilize a 780 nm diode laser to achieve a linewidth better than 1 MHz.

show abstract

The UK National Quantum Technologies Hub in sensors and metrology (Keynote Paper)

Cited by 12 publications

References 22 publications

3D-printed components for quantum devices

3D-printed components for quantum devices

Cold-atom clock based on a diffractive optic

Harnessing speckle for a sub-femtometre resolved broadband wavemeter and laser stabilization

Contact Info

Product

Resources

About