Laser-induced fluorescence and Fourier transform spectroscopy of TiO: An improved description of the 3Δ ground state

Laser-induced fluorescence spectra of the C 3 Δ- X 3 Δ and B 3 Π- X 3 Δ transitions of TiO have been recorded at high resolution by Fourier transform spectroscopy. For the molecule production, a simple flame reaction device was used. This device was based on a titanium hollow cathode sputtering source used with O 2 or N 2 O as oxidant. Experimental data involving vibrational progressions up to v ″ = 6 have been fitted with standard Hamiltonian matrix models, allowing for an improved description of the ground state. Moreover, a merged fit combining new LIF-data and previous high-resolution emission data on the B - X band system has been performed, yielding the best set of ground state molecular constants for TiO available to this date.