Characteristics of a CO laser

Formation and Excitation of CN Molecules in He–CO–N2–O2 Discharge Plasmas

“…CO(v) significantly grows after oxygen is added (see e.g. [25,52,53] and references there). As that is not the case, one may deduce that (R13) is not a major channel of CN(B) production.…”

Pulsed CO laser and laser amplifier operating on oxygen containing gas mixtures

“…The influence of asymmetric intermolecular VV exchange (2) CO(V) + N 2 (0) ⇔ CО(V-2) + N 2 (1) + ∆E VJ ( 2 ) on G peak of a pulsed first overtone CO laser operating on ro-vibrational transitions V+2→V P(J) for V=34÷36 was also observed in [15]. Addition of N 2 molecules into gas mixture СО:Не resulted in more efficient depopulation of vibrational levels with V>37 and a decrease of G peak on ro-vibrational transitions of vibrational band 38→36 and enhancement G peak on vibrational band with V=34, respectively.…”

“…It was found in earlier studies [1][2][3] of self-sustained DC discharge CO laser that small additive of oxygen (up to 10 % of CO concentration) plays positive role in laser active medium (AM). A cause of such influence is connected with sufficient change of electric discharge characteristics [4], plasma structure [3,[5][6][7] and vibrational distribution function (VDF) of CO molecules [7,8] even at small addition of oxygen.…”

Modeling of CO/N2 Molecular Laser Systems

“…In addition, the interesting effects of gas additives on laser gain and wavelength in CO suggests that the plasma properties are being altered rather than a direct effect via molecular en-rgy transfer processes. 9 ) Since a shift in available laser wavelength toward / (where Q o is some arbitrary constant chosen to make the numbers 6 and n more manageable, we used Q =10~1 6 cm 2 ) we obtain Equations (4) and (5) are simultaneous first order differential equations for the distribution function and the inelastic collision integral. We solve these numerically using a fourth order Runge-Kutta integration scheme.…”