Focal Interest
Focal Interest

Spectroscopy

  1. Time-resolved X-ray probes track heating and ionization in solid-density plasma
    Sub-picosecond X-ray spectroscopy and multi-scale simulations reveal spatiotemporal heating and ionization dynamics in laser-driven plasmas, with implications for fusion energy models.
  2. Atomic hydrogen test agrees with Standard Model prediction
    Ultra-precise measurement of hydrogen's 2S-6P transition resolves conflicting proton radius values and tests quantum electrodynamics to 0.7 parts per trillion, validating the Standard Model.
  3. Cr and rare-earth grey phases form in doped fuel models
    Synchrotron spectroscopy reveals chromium and lanthanide speciation in Cr-doped uranium dioxide fuels, showing perovskite secondary phases remain structurally stable under radiation exposure.
  4. Stereochemical assignment of trifluoroacetamides using NMR signals
    Stereochemical assignment of N,N-dialkyl trifluoroacetamides using integrated analysis of through-space 1H···19F spin-spin couplings and aromatic solvent-induced shifts in 1H-NMR spectroscopy.
  5. Odd isotope selectivity achieved in calcium resonance ionization
    Selective resonance ionization technique using angular momentum selection rules and polarized light enables isolation of rare calcium isotopes Ca-43 and Ca-41 while suppressing abundant Ca-40.
  6. Accurate rovibrational levels for He2 a3Σu+ state match spectroscopy
    High-precision rovibrational computations for He2 a 3Σu+ state incorporating relativistic, QED, and nonadiabatic corrections with sub-ppm potential energy curve accuracy.