Lattice-based optical clock using an even isotope of Yb

Published

September 12, 2007

Author(s)

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

Abstract

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.

Volume

6673

Issue

66730E

Conference Dates

August 29-31, 2007

Conference Location

San Diego, CA

Pub Type

Conferences

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Keywords

atomic clocks, metrology, optical lattices, precision spectroscopy

Citation

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], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=50586 (Accessed April 25, 2024)