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Lattice-based optical clock using an even isotope of Yb



Zeb Barber, C Hoyt, Jason Stalnaker, Nathan D. Lemke, Christopher W. Oates, Tara M. Fortier, Scott A. Diddams, Leo W. Hollberg


We describe progress toward an optical lattice clock based on an even isotope of Yb. The 1S_0 - P_0 clock resonance in 174Yb is accessed using a magnetically induced spectroscopic technique. Using ~1 mT static magnetic fields and ~10 uW of probe light power we generate Rabi frequencies of several Hz. The narrow spectroscopic features that result (<10 Hz FWHM) require a highly stabilized laser at the clock transition wavelength of 578 nm. We describe a new all solid-state laser system that shows Hz level stability. In order to cancel the slow drift of the cavity, spectroscopy is performed on the clock transition to provide feedback to the laser. Using a Ca neutral atom frequency standard as a reference oscillator we show high stability and an effective method for investigating clock frequency shift systematics.
Proceedings Title
Proc. 2007 SPIE Conf.
Conference Dates
August 29-31, 2007
Conference Location
San Diego, CA


atomic clocks, metrology, optical lattices, precision spectroscopy


Barber, Z. , Hoyt, C. , Stalnaker, J. , Lemke, N. , Oates, C. , Fortier, T. , Diddams, S. and Hollberg, L. (2007), Lattice-based optical clock using an even isotope of Yb, Proc. 2007 SPIE Conf., San Diego, CA, [online], (Accessed May 21, 2024)


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Created September 12, 2007, Updated February 19, 2017