We present an experimental study of the lattice-induced light shifts on the optical clock transition () in neutral ytterbium. The “magic” frequency for the isotope was determined to be , which leads to a first order light shift uncertainty of 0.38 Hz. We also investigated the hyperpolarizability shifts due to the nearby , , and two-photon resonances at 759.708, 754.23, and 764.95 nm, respectively. By measuring the corresponding clock transition shifts near these two-photon resonances, the hyperpolarizability shift was estimated to be 170(33) mHz for a linear polarized, deep, lattice at the magic wavelength. These results indicate that the differential polarizability and hyperpolarizability frequency shift uncertainties in a Yb lattice clock could be held to well below .

Optical Lattice Induced Light Shifts in an Yb Atomic Clock / Z. W. Barber; J. E. Stalnaker; N. D. Lemke; N. Poli; C. W. Oates; T. M. Fortier; S. A. Diddams; L. Hollberg; C. W. Hoyt; A. V. Taichenachev; V. I. Yudin. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 100:(2008), pp. 103002-1-103002-4. [10.1103/PhysRevLett.100.103002]

Optical Lattice Induced Light Shifts in an Yb Atomic Clock

POLI, NICOLA;
2008

Abstract

We present an experimental study of the lattice-induced light shifts on the optical clock transition () in neutral ytterbium. The “magic” frequency for the isotope was determined to be , which leads to a first order light shift uncertainty of 0.38 Hz. We also investigated the hyperpolarizability shifts due to the nearby , , and two-photon resonances at 759.708, 754.23, and 764.95 nm, respectively. By measuring the corresponding clock transition shifts near these two-photon resonances, the hyperpolarizability shift was estimated to be 170(33) mHz for a linear polarized, deep, lattice at the magic wavelength. These results indicate that the differential polarizability and hyperpolarizability frequency shift uncertainties in a Yb lattice clock could be held to well below .
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103002-1
103002-4
Z. W. Barber; J. E. Stalnaker; N. D. Lemke; N. Poli; C. W. Oates; T. M. Fortier; S. A. Diddams; L. Hollberg; C. W. Hoyt; A. V. Taichenachev; V. I. Yudin
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2158/388538
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