Spectroscopy of Carbon Containing Diatomic Molecules

Analysis of time-resolved superposed atomic hydrogen Balmer lines and molecular diatomic carbon spectra

“…For diatomic molecules, the line strength in Eq. (1) for dipole transition comprises the product of the electronic transition moment (electronic-potential dependent r-centroids), of Franck-Condon factors, and of Hönl-London factors [5]. In analytic applications, accurate computations are required of the upper and lower potentials in order to obtain accurate values for the line strengths.…”

“…This algorithm includes numerical diagonalization of upper and lower Hamiltonians. Boltzmann plot techniques for atomic [7,9] and/or molecular transitions along with computations of diatomic molecular species allow us to infer temperature [4,5,22,23].…”

“…The implementation for modeling of the molecular spectra of individual diatomic molecules includes use of nonlinear fitting of measured spectra with synthetic spectra [5,22,23]. For convenience, a graphical user interface has been designed for determination of temperature for a given instrumental FWHM.…”

“…The hydrogenbeta line in this region may very well be modeled by an at most quadratic background to extract temperature information from C 2 . Computation of the molecular spectra is accomplished by use of the line-strength file for C 2 [5]. This approach is preferred rather than applying SPECAIR program features [24].…”

“…For our study of methane LIB, C 2 Swan bands are clearly discernible in the wings of H β and H γ transition peaks. Diatomic quantum theory provides a means to precisely create synthetic spectra for various molecules subsequent to LIB [4,5]. Investigations of H β profiles in hydrogen gas (H 2 ) show spectroscopic details of the H β profile in studies of LIB [6,7].…”