Chemical Laser Systems.

A number of chemical reactions leading to the formation of vibrationally excited Hcl have been studied spectroscopically employing a diagnostic technique developed during the earlier course of this program. An infrared interferometric technique has been employed to develop a diagnostic procedure which makes possible the spatial time measurement of the spontaneous Hcl emission as a function of location along the flow axis of the reactor tube. During the course of the studies on the Cl HI reaction, measurements were made of the atomic iodine 2p12 to 2p32 emission which has been observed to accompany that from HCl. A number of other HCl producing reactions have also been studied a spectroscopic examination of the SO N2O reaction to produce SO23B1 has been initiated and some additional work on the CS2N2OO2 flame laser has been carried out. Finally, a small effort to investigate means for efficiently producing metal atoms by chemical reaction has been initiated. In these experiments, Cu metal atoms were electrically excited by means of a pulsed electric discharge through CuCl vapor diluted with Argon.