TA9 - Time-dependent calculations of carbon monoxide laser kinetics

Non Equilibrium Dissociation of HF in Electrical Discharges: The Role of Vibrational Excitation

“…4) th a t our m echanism w ithout recom bination is able to dissociate all H F molecules in a tim e of th e order of 10-4 s. I t is w orth noting th a t th e atom concentration reaches a value of 2.1015 cm -3 a t t = 10-6 s, which is th e characteristic tim e for pulsed discharges with ne= 1014 cm -3 (see for exam ple Ref. [7]). A balance betw een th e vibrational q u an ta introduced by e-V energy exchanges and th e corre sponding q u a n ta lost by decay channels can be approxim ately w ritten as follows [6] M e N v=o K e 0l ^ ne N\ K \q…”

Energy conversion in high enthalpy flows and non-equilibrium plasmas

“…Lasing action in CO-air mixtures lends itself to such modeling, inasmuch as a long history of development of high power CO lasers has led to a large data base of quantum-state-resolved vibrational energy transfer rates. The kinetic model is based on the OSU CO optically pumped plasma model [40] and the CO laser field model of Rockwood and Brau [41]. The model also incorporates the quasi-one-dimensional equations of compressible flow, together with kinetic equations governing the population of each vibrational quantum level for each diatomic species in the laser gas mixture as a function of time ('master equation' modeling).…”

Continuous-wave electrically excited carbon monoxide laser operating on first overtone infrared bands: 2.5- to 4.0-microns kinetic modeling and design

“…The code was developed from the OSU CO molecular plasma model [10] and the CO laser field model of Rockwood and Brau [12]. The best available state-to-state vibrational energy transfer rates are used; some of these are supplied by recent OSU theory and experiments [1 3,14].…”