150th BIPM Anniversary of the signing of the Metre Convention, Sèvres (France). 20-22 May 2025
Summary:
The well-known Lorentz-Lorenz relation is currently used in several branches of Optics and Materials Properties for understanding the behaviour of materials and gases under the presence of light. However, this relation was obtained under the assumption of an ideal system. Although, the virial coefficients were introduced to solve this limitation, a new scope has been considered by us, which introduces the molecules physical dimensions and their shape into the Lorentz-Lorenz relation, achieving a generalized form of that L-L
relation. In this study, the statistical analysis of refractivity versus pressure for Ar, Ne and N data was performed, in order to explore the asymmetry in the statistical distributions in relation to their molecular shape and gas interactions.
Spanish layman's summary:
Se propone un nuevo alcance para la relación de Lorentz-Lorenz con el fin de considerar las dimensiones físicas de las moléculas y su forma.Estos resultados son especialmente interesantes para dispositivos de refractometría: interferómetros Fabry-Perot de modo único y mediciones de dispersión de luz.
English layman's summary:
It is proposed a new scope for the the Lorentz-Lorenz relation in order to consider the molecules physcal dimensionas nad their shape. These results are singularly interesting to refractometer devices: single mode Fabry-Perot interferometers and light scattering measurements.
Keywords: Statistical distributions, phyisic-chemicals properties, virial coefficientes, Lorentz-Lorenz relation.
Publication date: 20-May-2025.
Citation:
S. Moltó, J.A. Fernandez-Torres, M.A. Sáenz-Nuño, E. Bernabéu Martínez, "Transcendence of generalized lorentz-lorenz relation in refractometry: statistical incidences", presented at 150th BIPM Anniversary of the signing of the Metre Convention, Sèvres, France, 20-22 May 2025
IIT-25-055C_poster
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