Robert Gunkelman

ORCID: 0009-0004-9783-6708
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About
Contact & Profiles
Research Areas
  • Scientific Measurement and Uncertainty Evaluation
  • Advanced Frequency and Time Standards
  • Cold Atom Physics and Bose-Einstein Condensates
  • Spectroscopy and Laser Applications
  • Atomic and Subatomic Physics Research
  • Radioactive Decay and Measurement Techniques
  • Mass Spectrometry Techniques and Applications
  • Atomic and Molecular Physics

Colorado State University
2023-2024

Optical frequencies of the $D$ line transitions in $^{9}{\mathrm{Be}}^{+}$ were measured with a relative uncertainty $\mathrm{\ensuremath{\Delta}}\ensuremath{\nu}/\ensuremath{\nu}=5\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}11}$. The results represent highest accuracy achieved on broad electric dipole-allowed (E1) transition trapped ion experiment to date, enabled part by detailed consideration photon recoil and quantum interference. Measurements made single laser-cooled stored...

10.1103/physrevlett.131.093001 article EN Physical Review Letters 2023-09-01

Hyperfine splittings of the $^{2}P_{3/2}$ manifold in $^{9}\mathrm{Be}^{+}$ were measured directly using a single laser-cooled ion stored radiofrequency Paul trap. As hyperfine structure is unresolved beneath natural linewidth transition, manipulation initial state, polarization, and final-state populations was used to preferentially detect scattering events through specific intermediate excited states. While quantum interference effects typically complicate modeling measurement lineshapes,...

10.1103/physreva.109.012809 article EN Physical review. A/Physical review, A 2024-01-16

The 53rd Annual Meeting of the APS Division Atomic, Molecular and Optical Physics will take place from May 30 – June 3, 2022 in Orlando, Fl, USA. <a href="https://morressier.zoom.us/j/89880865272?pwd=SWxTRGhra1ZOSDBrSkhVZDBzVDR6UT09/">Virtual Help Desk</a>

10.26226/m.6275705866d5dcf63a3113d9 preprint EN 2022-05-25
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