The Fitted q-Gaussian Function, from Voigt Profile to Kubo Lineshape

Amelia Carolina Sparavigna

International Journal of Sciences, 2024, vol. 13, issue 03, 1-16

Abstract: Several previously discussed cases have shown that the q-Gaussian Tsallis functions can be used for fitting the bands of Raman spectra. Here, considering an article by Thibault et al., 2002, we can add the case of the Raman Q branch of carbon monoxide, for mixtures with Argon at different temperatures. In Thibault et al., a plot is available for the Q(5) line with a fitted Voigt function. A q-Gaussian Tsallis function can be used for fitting this line too. We will note that the fitted q-Gaussian has the wings which are not Lorentzian. At the same time, the wings are not Gaussian. Besides the use of q-Gaussians, a discussion will be proposed about the time correlation functions related to different line shapes (q-Gaussian, Egelstaff-Schofield, Kubo, BWF, Voigt, speed-dependent Voigt, Galatry, Rautian, HTP). Some of these line shapes have been proposed for the high-resolution spectroscopy of gases; however, their knowledge can be relevant also for the condensed matter spectroscopy.

Keywords: Raman Spectroscopy; q-Gaussian Tsallis Lines; Time Correlation Functions; WolframAlpha (search for similar items in EconPapers)
Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.ijsciences.com/pub/article/2750 (text/html)
https://www.ijsciences.com/pub/pdf/V132024032750.pdf (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:adm:journl:v:13:y:2024:i:3:p:1-16

Ordering information: This journal article can be ordered from
https://www.ijsciences.com/payment_guide.php

DOI: 10.18483/ijSci.2750

Access Statistics for this article

More articles in International Journal of Sciences from Office ijSciences Alkhaer Publications Manchester M8 8XG England.
Bibliographic data for series maintained by Staff ijSciences ().