277 citations · 1.1k across the 16 of their papers we have counts for
9 papers · 1 filter
Spectroscopic Study and Lifetime Measurement of the state of radium
D. W. Booth, T. Rabga, R. Ready +7
We report a method for the precision measurement of the oscillator strengths and the branching ratios of the decay channels of the state in Ra. This method e…
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…
Setting a Limit on Anthropogenic Sources of Atmospheric 81Kr through Atom Trap Trace Analysis
J. C. Zappala, K. Bailey, W. Jiang +4
We place a 2.5% limit on the anthropogenic contribution to the modern abundance of 81Kr/Kr in the atmosphere at the 90% confidence level. Due to its simple production and transport…
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 $…
Efficient, Tightly-Confined Trapping of 226Ra
R. H. Parker, M. R. Dietrich, K. Bailey +10
We demonstrate a technique for transferring Ra atoms from a 3-dimensional magneto-optical-trap (MOT) into a standing wave optical dipole trap (ODT) in an adjacent chamber.…
Optical Excitation and Decay Dynamics of Ytterbium Atoms Embedded in a Solid Neon Matrix
C. -Y. Xu, S. -M. Hu, J. Singh +5
Neutral ytterbium atoms embedded in solid neon qualitatively retain the structure of free atoms. Despite the atom-solid interaction, the 6s6p P level is found to remain met…
Ar-39 Detection at the 10^-16 Isotopic Abundance Level with Atom Trap Trace Analysis
W. Jiang, W. D. Williams, K. Bailey +8
Atom Trap Trace Analysis (ATTA), a laser-based atom counting method, has been applied to analyze atmospheric Ar-39 (half-life = 269 yr), a cosmogenic isotope with an isotopic abund…
Laser-trapping of Ra-225 and Ra-226 with repumping by room temperature blackbody radiation
J. R. Guest, N. D. Scielzo, I. Ahmad +6
We have demonstrated Zeeman slowing and capture of neutral Ra-225 and Ra-226 atoms in a magneto-optical trap (MOT). The intercombination transition 1S0-3P1 is the only quasi-cyclin…
Fine Structure of the 1s3p ^3P_J Level in Atomic ^4He: Theory and Experiment
P. Mueller, L. -B. Wang, G. W. F. Drake +3
We report on a theoretical calculation and a new experimental determination of the 1s3p ^3P_J fine structure intervals in atomic ^4He. The values from the theoretical calculation o…