Publications (53)
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 $…
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…
Rapid processing of 85Kr/Kr ratios using Atom Trap Trace Analysis
J. C. Zappala, K. Bailey, P. Mueller +2
We report a methodology for measuring 85Kr/Kr isotopic abundances using Atom Trap Trace Analysis (ATTA) that increases sample measurement throughput by over an order of magnitude t…
Weak Interaction Studies with 6He
A. Knecht, Z. T. Alexander, Y. Bagdasarova +17
The 6He nucleus is an ideal candidate to study the weak interaction. To this end we have built a high-intensity source of 6He delivering ~10^10 atoms/s to experiments. Taking full…
A spectroscopic study of the cycling transition 4s[3/2]_2-4p[5/2]_3 at 811.8 nm in Ar-39: Hyperfine structure and isotope shift
W. Williams, Z. -T. Lu, K. Rudinger +3
Doppler-free saturated absorption spectroscopy is performed on an enriched radioactive Ar-39 sample. The spectrum of the 3s^2 3p^5 4s [3/2]_2 - 3s^2 3p^5 4p [5/2]_3 cycling transit…
Intrinsic Tunneling in Cuprates and Manganites
S. Heim, T. Nachtrab, M. Moessle +7
The most anisotropic high temperature superconductors like Bi2Sr2CaCu2O8, as well as the recently discovered layered manganite La1.4Sr1.6Mn2O7 are layered metallic systems where th…