The study of molecular ions was greatly accelerated by Oka's1 development of tunable
infrared laser absorption spectroscopy of glow discharges in 1980 via his initial detection of …

An analytical formula is used to predict the accurate P-branch spectral lines of rovibrational
transitions for diatomic systems. The formula is derived from elementary expression of …

The potential energy curves (PECs) of six low-lying electronic states (X2Πg, a 4Πu, A2Πu, b
4, D2Δg and B2) of ion were studied by the ab initio quantum chemical method. The …

Abstract The (2, 0) band of the A 2 Π uX 2 Σ g+ system of N 2+ was rotationally studied via
optical heterodyne detected velocity modulation spectroscopy. Owing to the high sensitivity …

Two bands of the A2Πu–X2Πg spectrum of 35Cl2+ and one band of 35Cl37Cl+ in the region
between 16820 and 17350cm− 1 have been recorded using optical heterodyne magnetic …

The second negative (A2Πu–X2Πg) system of O2+ were investigated in the 12100–
14100cm− 1 near infrared region at high resolution by employing optical heterodyne …

Optical heterodyne detected velocity modulation molecular ionic spectroscopy is presented
and employed to observe the rovibrantional spectra of O 2+ and O 2-. That the lineshape of …

The Doppler-limited absorption spectrum of the O2+ 18 cation was observed using a Ti–
Sapphire laser system (in region of 12060–12800cm− 1) by optical heterodyne velocity …

The P-branch emission spectra of (4, 1) and (3, 1) bands of the A 1 Π-X 1 Σ+ system of IrN
molecule are studied using an analytical formula which is derived from elementary …

An analytical formula is suggested to predict the accurate Q-branch spectral lines of
rovibrational transitions for diatomic systems by taking multiple spectral differences, and is …