Infrared laser induced fluorescence as a spectroscopic probe: Applications to CO₂

Use of the infrared laser induced fluorescence technique as a spectroscopic probe is discussed with applications to CO₂. It is shown how the shape of the fluorescence signal can be used to easily distinguish between fundamental and hot band transitions. Fluorescence and absorption experiments have also been performed with ¹³C enriched CO₂ and result in probable assignments of CO₂ transitions for a number of HBr laser lines which are absorbed by CO₂.