Autoionisation resonances in the 5s-subshell excitation spectrum of indium

Abstract

The authors report new high-resolution photoabsorption spectra of indium in the 5s-subshell excitation region. The observations were made in the first order of a 3 metre vacuum spectrograph equipped with a 6000 lines/mm holographic grating using synchrotron radiation as the background source of the continuum. The Rydberg transitions 5s-25p 2P1/2 to 5s5p(3P0,1,2, 1P1)np have been observed and extended to higher n values. A few transitions from the thermally populated 5s25p 2P3/2 level have also been detected.

Recommended Cross Sections for Electron–Indium Scattering

“…Those values have been assembled from the available photoionization spectra 33,34 and information regarding the convergence of spectral lines to the ionization thresholds. 35,36 These values have been combined with orbital kinetic energies for atomic indium that were derived from a single point energy calculation of indium hydride (InH, r 9.0 Å) in Gaussian 09, 37 with the model chemistry employing density functional theory (B3LYP) 38 and a double zeta valance polarized basis set. 39 The parameters used in the present BEB calculation are summarized in Table 1.…”

Laser ablation of an indium target: time-resolved Fourier-transform infrared spectra of In I in the 700–7700 cm−1 range

“…Higher excited series of doubly excited In states were studied assuming more a complex J c K coupling scheme 5s5p Sc 3 P Jc np with S c ¼ 3, J c ¼ 0, 1 (n ¼ 6-9, 15 n ¼ 6-26 (ref. 16)), J c ¼ 2 (n ¼ 6-9 for S c ¼ 3 and n ¼ 6-13 for S c ¼ 1) 16 and S c ¼ 3, J c ¼ 1 (n ¼ 16-31). 17 A strong conguration interaction due to these two-electron excitations inuences the other states' spectral parameters, such as the quantum defect of the Rydberg states, neand hyperne-structure splitting, and transition amplitudes.…”