Baldwin, Kenneth G.H.Kono, MitsuhikoHe, YabaiOrr, Brian J.2026-01-012026-01-019781467318396ORCID:/0000-0002-2043-5330/work/162207913https://hdl.handle.net/1885/733799164Sub-Doppler two-photon excitation spectra are recorded for high-energy Rydberg levels of atomic xenon, using narrowband nanosecond pulses of coherent radiation at 206-210 nm. The diverse hyperfine and isotopic structure is assigned and analyzed.en201284870352908