NEAR INFRARED LASER SPECTROSCOPY OF TITANIUM SULFIDE

Abstract

TiS has been produced in a supersonic free jet expansion in argon by the reaction between laser ablated titanium and carbon disulfide. Laser induced fluorescence (LIF) spectra between 760-845 nm were obtained using a single frequency Tisapphire ring-dye laser. The LIF spectrum obtained was at a resolution of about 250 MHz. Rotational analysis the $C^{3} \Delta_{1}- X^{3} \Delta_{1} (1,0) (2,0)$ and (3,0) bands has been performed. Furthermore, two previously unassigned sub band transitions $\Pi_{1}-X^{3}\Delta_{2}$ and $\Pi_{1}-X^{3}\Delta_{1}$ have also been recorded and analyzed. This paper will present the LIF spectra and the rotational analysis of all the bands will be discussed. Acknowledgement: This work was carried out with support from the Hong Kong Research Grants Council under Grant HKU465/949.