This article is cited in 5 papers

Spontaneous emission probabilities and collisional line widths of 00⁰1–[10⁰0, 02⁰0]_I,II lasing transitions in the CO₂ molecule

V. V. Nevdakh


Abstract: A frequency-stabilized tunable CO₂ laser was used to measure the absorption coefficients for the J = 6–34 lines in the R and P branches of the 00⁰1-[10⁰0,02⁰0]_I,II transitions in CO₂ with an error of less than 1% in the pressure range of 1–200 Torr at room temperature. A specially developed method was used to calculate the spontaneous emission probabilities A mn and the collisional line widths 2Δν_L from the measured absorption coefficients at pressures corresponding to the Voigt and Lorentzian line profiles. The data obtained were approximated by analytic expressions describing the dependences of A_mn and 2Δν_L on the rotational quantum number J. The squares of the matrix elements of the moments of the transitions were calculated for all the lines under study.

UDC: 535.341

PACS: 42.55.Lt, 42.60.By, 42.60.Jf, 42.60.Lh, 42.60.Fc

Received: 12.12.1983

 English version: Soviet Journal of Quantum Electronics, 1984, 14:8, 1091–1094

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