900 citations · 4.3k across the 24 of their papers we have counts for
17 papers · 1 filter
Frequency Shifts due to Stark Effects on a Rb two-photon transition
Kyle W Martin, Benjamin Stuhl, Jon Eugenio +4
The two-photon transition in Rb is of interest for the development of a compact optical atomic clock. Here we present a rigorous calculation of the 7…
Compact Optical Atomic Clock Based on a Two-Photon Transition in Rubidium
Kyle W. Martin, Gretchen Phelps, Nathan D. Lemke +7
Extra-laboratory atomic clocks are necessary for a wide array of applications (e.g. satellite-based navigation and communication). Building upon existing vapor cell and laser techn…
Characterizing the Optical Trapping of Rare Isotopes by Monte Carlo Simulation
D. H. Potterveld, S. A. Fromm, K. G. Bailey +13
Optical trapping techniques are an efficient way to probe limited quantities of rare isotopes. In order to achieve the highest possible measurement precision, it is critical to opt…
Measurement of the Hyperfine Quenching Rate of the Clock Transition in Yb
C. -Y. Xu, J. Singh, J. C. Zappala +8
We report the first experimental determination of the hyperfine quenching rate of the transition in Yb with nuclear spin $…
A strontium lattice clock with inaccuracy and its frequency
Stephan Falke, Nathan Lemke, Christian Grebing +10
We have measured the absolute frequency of the optical lattice clock based on Sr at PTB with an uncertainty of using two caesium fountain clocks. This i…
An atomic clock with instability
N. Hinkley, J. A. Sherman, N. B. Phillips +6
Atomic clocks have been transformational in science and technology, leading to innovations such as global positioning, advanced communications, and tests of fundamental constant va…
Determination of the 5d6s 3D1 state lifetime and blackbody radiation clock shift in Yb
K. Beloy, J. A. Sherman, N. D. Lemke +3
The Stark shift of the ytterbium optical clock transition due to room temperature blackbody radiation is dominated by a static Stark effect, which was recently measured to high acc…
High accuracy measure of atomic polarizability in an optical lattice clock
J. A. Sherman, N. D. Lemke, N. Hinkley +4
Despite being a canonical example of quantum mechanical perturbation theory, as well as one of the earliest observed spectroscopic shifts, the Stark effect contributes the largest…
Cold collision shift cancelation and inelastic scattering in a Yb optical lattice clock
A. D. Ludlow, N. D. Lemke, J. A. Sherman +4
Recently, p-wave cold collisions were shown to dominate the density-dependent shift of the clock transition frequency in a 171Yb optical lattice clock. Here we demonstrate that by…
p-Wave cold collisions in an optical lattice clock
N. D. Lemke, J. von Stecher, J. A. Sherman +3
We study ultracold collisions in fermionic ytterbium by precisely measuring the energy shifts they impart on the atom's internal clock states. Exploiting Fermi statistics, we uncov…
Making optical atomic clocks more stable with level laser stabilization
Y. Y. Jiang, A. D. Ludlow, N. D. Lemke +4
The superb precision of an atomic clock is derived from its stability. Atomic clocks based on optical (rather than microwave) frequencies are attractive because of their potential…
Hyper-Ramsey Spectroscopy of Optical Clock Transitions
V. I. Yudin, A. V. Taichenachev, C. W. Oates +6
We present non-standard optical Ramsey schemes that use pulses individually tailored in duration, phase, and frequency to cancel spurious frequency shifts related to the excitation…
Spin-1/2 Optical Lattice Clock
N. D. Lemke, A. D. Ludlow, Z. W. Barber +7
We experimentally investigate an optical clock based on Yb () atoms confined in an optical lattice. We have evaluated all known frequency shifts to the clock transit…
Probing Interactions between Ultracold Fermions
G. K. Campbell, M. M. Boyd, J. W. Thomsen +12
At ultracold temperatures, the Pauli exclusion principle suppresses collisions between identical fermions. This has motivated the development of atomic clocks using fermionic isoto…
Frequency evaluation of the doubly forbidden transition in bosonic Yb
N. Poli, Z. W. Barber, N. D. Lemke +11
We report an uncertainty evaluation of an optical lattice clock based on the transition in the bosonic isotope Yb by use of magnetically induced…
Optical Lattice Induced Light Shifts in an Yb Atomic Clock
Z. W. Barber, J. E. Stalnaker, N. D. Lemke +6
We present an experimental study of the lattice induced light shifts on the 1S_0-3P_0 optical clock transition (v_clock~518 THz) in neutral ytterbium. The ``magic'' frequency, v_ma…
Sr lattice clock at 1x10^{-16} fractional uncertainty by remote optical evaluation with a Ca clock
A. D. Ludlow, T. Zelevinsky, G. K. Campbell +16
Optical atomic clocks promise timekeeping at the highest precision and accuracy, owing to their high operating frequencies. Rigorous evaluations of these clocks require direct comp…