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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 44, Iss. 18 — Jun. 20, 2005
  • pp: 3686–3695

Diatomic Hönl–London factor computer program

James O. Hornkohl, Christian G. Parigger, and László Nemes  »View Author Affiliations


Applied Optics, Vol. 44, Issue 18, pp. 3686-3695 (2005)
http://dx.doi.org/10.1364/AO.44.003686


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Abstract

A new method is presented for computation of diatomic rotational line strengths, or Hönl–London factors. The traditional approach includes separately calculating line positions and Hönl–London factors and assigning parity labels. The present approach shows that one merely computes the line strength for all possible term differences and discards those differences for which the strength vanishes. Numerical diagonalization of the upper and lower Hamiltonians is used, which directly obtains the line positions, Hönl–London factors, total parities, and e/f parities for both heteronuclear and homonuclear diatomic molecules. The fortran computer program discussed is also applicable for calculating n-photon diatomic spectra.

© 2005 Optical Society of America

OCIS Codes
(140.3440) Lasers and laser optics : Laser-induced breakdown
(300.6390) Spectroscopy : Spectroscopy, molecular
(350.5400) Other areas of optics : Plasmas

History
Original Manuscript: September 1, 2004
Revised Manuscript: March 10, 2005
Manuscript Accepted: March 25, 2005
Published: June 20, 2005

Citation
James O. Hornkohl, Christian G. Parigger, and László Nemes, "Diatomic Hönl–London factor computer program," Appl. Opt. 44, 3686-3695 (2005)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-18-3686


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References

  1. Von H. Hönl, F. London, “Uber die Instensitäten der Bandenlinien,” Z. Phys. 33, 803–809 (1925). [CrossRef]
  2. F. Roux, M. Michaud, M. Vervloet, “High-resolution Fourier spectrometry of 14N2: analysis of the (0–0), (0–1), (0–2), (0–3) bands of the C 3Πu ↔ B 3Πg system,” Can. J. Phys. 67, 143–147 (1989). [CrossRef]
  3. A. P. Thorne, Spectrophysics (Chapman & Hall, 1974, 1988).
  4. A. P. Thorne, U. Litzen, S. Johansson, Spectrophysics: Principles and Applications (Springer-Verlag, 1999).
  5. R. C. Hilborn, “Einstein coefficients, cross sections, f values, dipole moments, and all that,” Am. J. Phys. 50, 982–986 (1982). [CrossRef]
  6. E. U. Condon, G. H. Shortly, The Theory of Atomic Spectra (Cambridge U. Press, 1964).
  7. I. I. Sobelman, Atomic Spectra and Radiative Transitions (Springer-Verlag, 1979). [CrossRef]
  8. H. Lefebvre-Brion, R. W. Field, Perturbations in the Spectra of Diatomic Molecules (Academic, 1986).
  9. H. Lefebvre-Brion, R. W. Field, The Spectra and Dynamics of Diatomic Molecules (Elsevier, 2004).
  10. P. L. Rubin, “Line intensity factors in electronic spectra of diatomic molecules,” Opt. Spectrosc. 20, 325–327 (1966).
  11. I. Kovacs, Rotational Structure in the Spectra of Diatomic Molecules, L. Nemes, transl. (American Elsevier, 1969).
  12. J. T. Hougen, The Calculation of Rotational Energy Levels and Rotational Line Intensities in Diatomic Molecules, version 1.0, NBS Monograph 115 (National Institute of Standards and Technology, 1970), http://physics.nist.gov/DiatomicCalculations [2004, February2].
  13. A. Schadee, “The relation between the electronic oscillator strength and the wavelength of diatomic molecules,” J. Quant. Spectrosc. Radiat. Transfer 7, 169–183 (1967). [CrossRef]
  14. A. Schadee, “On the normalization of Hönl–London factors,” Astron. Astrophys. 14, 401–404 (1971).
  15. A. Schadee, “Theory of first rotational lines in transitions of diatomic molecules,” Astron. Astrophys. 41, 203–212 (1975).
  16. J. B. Tatum, “The interpretation of intensities in diatomic molecular spectra,” Astrophys. J. Suppl. 14, 21–55 (1967),Astrophys. J. Suppl.22, 388 (1971). [CrossRef]
  17. E. E. Whiting, J. A. Paterson, I. Kovacs, R. W. Nichols, “Computer checking of rotational line intensity factors for diatomic molecules,” J. Mol. Spectrosc. 47, 84–98 (1973). [CrossRef]
  18. E. E. Whiting, R. W. Nicholls, “Reinvestigation of rotational line strength factors in diaomic spectra,” Astrophys. J. Suppl. 27, 1–19 (1974). [CrossRef]
  19. J. O. Hornkohl, C. Parigger, “Angular momentum states of the diatomic molecule,” Am. J. Phys. 64, 623–632 (1996). [CrossRef]
  20. J. O. Hornkohl, C. G. Parigger, “Boltzmann equilibrium spectrum program (BESP),” http://view.utsi.edu/besp .
  21. J. O. Hornkohl, C. Parigger, J. W. L. Lewis, “Temperature-measurements from CN spectra in a laser-induced plasma,” J. Quant. Spectrosc. Radiat. Transfer 46, 405–411 (1991). [CrossRef]
  22. C. Parigger, D. H. Plemmons, J. O. Hornkohl, J. W. L. Lewis, “Spectroscopic temperature measurements in a decaying laser-induced plasma using the C2 Swan system,” J. Quant. Spectrosc. Radiat. Transfer 52, 707–711 (1994). [CrossRef]
  23. C. G. Parigger, G. Guan, J. O. Hornkohl, “Measurement and analysis of OH emission spectra following laser-induced breakdown,” Appl. Opt. 30, 5986–5991 (2003). [CrossRef]
  24. I. R. Sims, J.-L. Queffelec, A. Defrance, C. Rebrion-Rowe, D. Travers, P. Bocherel, I. W. M. Smith, “Ultralow temperature kinetics of neutral–neutral reactions. The technique and results for the reactions CN + O2 down to 13 K and CN + NH down to 25 K,” J. Chem. Phys. 100, 4229–4241 (1994). [CrossRef]
  25. J. M. Brown, J. T. Hougen, K. P. Huber, J. W. C. Johns, I. Kopp, H. Lefebvre-Brion, A. J. Merer, D. A. Ramsay, J. Rostas, R. N. Zare, “The labeling of parity doublet levels in linear molecules,” J. Mol. Spectrosc. 55, 500–503 (1975). [CrossRef]
  26. C. G. Parigger, J. O. Hornkohl, A. M. Keszler, L. Nemes, “Measurement and analysis of atomic and diatomic carbon spectra from laser ablation of graphite,” Appl. Opt. 30, 6192–6198 (2003). [CrossRef]

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