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2012 | 122 | 4 | 666-669
Article title

The Voigt Profile as a Sum of a Gaussian and a Lorentzian Functions, when the Weight Coefficient Depends Only on the Widths Ratio

Content
Title variants
Languages of publication
EN
Abstracts
EN
Assuming that V(x) ≈ (1 - μ) G_1(x) + μ L_1(x) is a very good approximation of the Voigt function, in this work we analytically find μ from mathematical properties of V(x). G_1(x) and L_1(x) represent a Gaussian and a Lorentzian function, respectively, with the same height and HWHM as V(x), the Voigt function, x being the distance from the function center. μ is obtained as a function of a, a being the ratio of the Lorentz width to the Gaussian width. We find that, the Voigt function calculated with the expression we have obtained for μ, deviates from the exact value less than 0.5% with respect to the peak value.
Keywords
EN
Publisher

Year
Volume
122
Issue
4
Pages
666-669
Physical description
Dates
published
2012-10
received
2011-12-20
(unknown)
2012-03-06
(unknown)
2012-05-24
Contributors
author
  • Instituto de Física Arroyo Seco (IFAS), Universidad Nacional del Centro de la Pcia. de Buenos Aires, Pinto 399, 7000 Tandil, Buenos Aires, Argentina
  • Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Rivadavia 1917, C1033AAJ Buenos Aires, Argentina
author
  • Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Paseo del Bosque s/n, 1900 La Plata, Buenos Aires, Argentina
  • Instituto de Astrofísica de La Plata (IALP-CONICET), Paseo del Bosque s/n, 1900 La Plata, Buenos Aires, Argentina
References
  • [1] J.L. Kielkopf, J. Opt. Soc. Am. 63, 987 (1973)
  • [2] Y. Liu, J. Lin, G. Huang, Y. Guo, C. Duan, J. Opt. Soc. Am. B 18, 666 (2001)
  • [3] H.O. Di Rocco, D.I. Iriarte, J.A. Pomarico, Appl. Spectrosc. 55, 822 (2001)
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv122n405kz
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