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Microfabricated Atomic Clocks and Magnetometers



Svenja A. Knappe, P Schwindt, Vladislav Gerginov, V Shah, Hugh Robinson


We describe recent research at NIST directed towards the development of microfabricated atomic clocks and magnetometers based on coherent population trapping spectroscopy. Clock physics packages based on the D1 transition in 87Rb achieve a fractional frequency instability below 4 10-11/t1/2 [1]. While the sensitivity of the magnetic sensor reached 50 pT Hz -1/2 at 10 Hz [2]. With volumes around 10 mm3 and power consumptions below 150 mW they display an improvement over the previous state-of-the-art by a factor of 100 in volume and a factor of 10 in power dissipation.
Proceedings Title
Proc. ICOLS Conf.
Conference Dates
June 19-24, 2005
Conference Location
Aviemore, SC
Conference Title
Intl. Conf. Laser Spectroscopy


atomic clocks, atomic magnetometers, coherent population trapping, microfabrication


Knappe, S. , Schwindt, P. , Gerginov, V. , Shah, V. and Robinson, H. (2005), Microfabricated Atomic Clocks and Magnetometers, Proc. ICOLS Conf., Aviemore, SC, [online], (Accessed April 15, 2024)
Created August 1, 2005, Updated February 17, 2017