Investigations of odd-parity autoionization levels of atomic samarium using three-color resonance ionization spectroscopy

• Published in: Journal of quantitative spectroscopy & radiative transfer Vol. 276; p. 107944
• Main Authors: Sahoo, A.C., Mandal, P.K., Mukherjee, Jaya, Dev, Vas, Shah, M.L.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01-12-2021
• ISSN: 0022-4073; 1879-1352
• DOI: 10.1016/j.jqsrt.2021.107944

•Autoionization spectra in the energy region 50,330 - 51,160 cm−1 of atomic samarium have been investigated by employing three-color three-step laser resonance ionization spectroscopy.•Fifty-five odd-parity autoionization levels of atomic samarium have been observed using three excitation schemes. Among these, fifty autoionization levels are new.•The total angular momenta of eighteen odd-parity autoionization levels have been assigned uniquely.
Three-color three-step laser resonance ionization spectroscopy has been employed to investigate the autoionization spectra of atomic samarium in the energy region 50,330 - 51,160 cm−1. The measurements were carried out in an atomic beam coupled to a linear time of flight mass spectrometer. Fifty-five odd-parity autoionization levels of atomic samarium in the above-mentioned energy region have been observed using three excitation schemes. Among these, fifty autoionization levels are new. The total angular momenta of eighteen odd-parity autoionization levels have been assigned uniquely.