Mulholland, S.; Klein, H. A; Barwood, G P; Donnellan, S.; Gentle, D.; Huang, G.; Walsh, G.; Baird, P. E. G.; Gill, P. (2019) Laser-cooled ytterbium-ion microwave frequency standard. Applied Physics B, 125 (11). 198 ISSN 0946-2171

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Abstract

We report on the development of a trapped-ion, microwave frequency standard based on the 12.6 GHz hyperfine transition in laser-cooled ytterbium-171 ions. The entire system fits into a 6U 19-in. rack unit (51×49×28cm)(51×49×28cm) and comprises laser, electronics, and physics package subsystems. As a first step towards a full evaluation of the system capability, we have measured the frequency instability of our system which is 3.6×10−12/√τ3.6×10−12/√τ for averaging times between 30 and 1500s1500s.

Item Type:	Article
Keywords:	{Microwave frequency standard, Portable, Laser-cooling , Atomic clock
Subjects:	Time and Frequency > Microwave Frequency Standards
Divisions:	Time & Frequency
Identification number/DOI:	10.1007/s00340-019-7309-6
Last Modified:	09 Dec 2019 14:21
URI:	http://eprintspublications.npl.co.uk/id/eprint/8581

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