Laser locking to the ^199Hg ^1S_0 − ^3P_0 clock transition with 54 × 10^−15/✓τ fractional frequency instability

Neutral Atom Frequency Reference in the Deep Ultraviolet withFractional Uncertainty=5.7×10−15

(2012) J. J. McFerran et al.   PHYSICAL REVIEW LETTERS

High-Accuracy Optical Clock Based on the Octupole Transition inYb+171

(2012) N. Huntemann et al.   PHYSICAL REVIEW LETTERS

A 920-Kilometer Optical Fiber Link for Frequency Metrology at the 19th Decimal Place

(2012) K. Predehl et al.   SCIENCE

Making optical atomic clocks more stable with 10−16-level laser stabilization

(2011) Y. Y. Jiang et al.   Nature Photonics

Frequency comparison of optical lattice clocks beyond the Dick limit

(2011) Masao Takamoto et al.   Nature Photonics

Ultraviolet laser spectroscopy of neutral mercury in a one-dimensional optical lattice

(2011) S. Mejri et al.   PHYSICAL REVIEW A

Optical Lattice Trapping ofHg199and Determination of the Magic Wavelength for the UltravioletS01↔P03Clock Transition

(2011) L. Yi et al.   PHYSICAL REVIEW LETTERS

Cascaded multiplexed optical link on a telecommunication network for frequency dissemination

(2010) Olivier Lopez et al.   OPTICS EXPRESS

Frequency Comparison of Two High-AccuracyAl+Optical Clocks

(2010) C. Chou et al.   PHYSICAL REVIEW LETTERS

An ultra-stable referenced interrogation system in the deep ultraviolet for a mercury optical lattice clock

(2009) S. T. Dawkins et al.   APPLIED PHYSICS B-LASERS AND OPTICS

A narrow linewidth and frequency-stable probe laser source for  the 88Sr+ single ion optical frequency standard

(2009) P. Dubé et al.   APPLIED PHYSICS B-LASERS AND OPTICS

Space clocks and fundamental tests: The ACES experiment

(2009) L. Cacciapuoti et al.   European Physical Journal-Special Topics

Spin-1/2Optical Lattice Clock

(2009) N. Lemke et al.   PHYSICAL REVIEW LETTERS

Astrophysics, atomic clocks and fundamental constants

(2008) S. G. Karshenboim et al.   European Physical Journal-Special Topics

Time transfer with nanosecond accuracy for the realization of International Atomic Time

(2008) D Piester et al.   METROLOGIA

Sr Lattice Clock at 1 x 10-16 Fractional Uncertainty by Remote Optical Evaluation with a Ca Clock

(2008) A. D. Ludlow et al.   SCIENCE

Frequency Ratio of Al+ and Hg+ Single-Ion Optical Clocks; Metrology at the 17th Decimal Place

(2008) T. Rosenband et al.   SCIENCE