{"title":"Analysis of 3D inhomogeneous optical systems via the Lorentzian formalism","authors":"Angel García-Botella , Manuel Gutiérrez","doi":"10.1016/j.physleta.2025.130606","DOIUrl":null,"url":null,"abstract":"<div><div>The application of Lorentz geometry to the study of homogeneous media nonimaging optical systems was introduced successfully in <span><span>[1]</span></span>, see also <span><span>[2]</span></span>, based on the analogy between lightlike cones and the cone of edge rays. Recently, we applied this technique to the study of 2D inhomogeneous optical systems <span><span>[3]</span></span>. In the present paper, we generalize previous studies to stationary 3D inhomogeneous optical systems. We obtain and provide some solutions to the systems of nonlinear partial differential equations in cartesian and spheric coordinates in three dimensions. We study optical systems with exponential refraction index. The solutions provide the geometrical vector flux <strong>J</strong> at any point of these 3D optical systems. From this Lorentzian formalism, we have obtained irradiance patterns of these stationary inhomogeneous optical systems and we have compared it with irradiance patterns obtained by raytrace simulations. Finally a study of the physical interpretation of eigenvalues of the Gram matrix of the Lorentzian metric <strong>G</strong> is presented.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"551 ","pages":"Article 130606"},"PeriodicalIF":2.3000,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics Letters A","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S037596012500386X","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The application of Lorentz geometry to the study of homogeneous media nonimaging optical systems was introduced successfully in [1], see also [2], based on the analogy between lightlike cones and the cone of edge rays. Recently, we applied this technique to the study of 2D inhomogeneous optical systems [3]. In the present paper, we generalize previous studies to stationary 3D inhomogeneous optical systems. We obtain and provide some solutions to the systems of nonlinear partial differential equations in cartesian and spheric coordinates in three dimensions. We study optical systems with exponential refraction index. The solutions provide the geometrical vector flux J at any point of these 3D optical systems. From this Lorentzian formalism, we have obtained irradiance patterns of these stationary inhomogeneous optical systems and we have compared it with irradiance patterns obtained by raytrace simulations. Finally a study of the physical interpretation of eigenvalues of the Gram matrix of the Lorentzian metric G is presented.
期刊介绍:
Physics Letters A offers an exciting publication outlet for novel and frontier physics. It encourages the submission of new research on: condensed matter physics, theoretical physics, nonlinear science, statistical physics, mathematical and computational physics, general and cross-disciplinary physics (including foundations), atomic, molecular and cluster physics, plasma and fluid physics, optical physics, biological physics and nanoscience. No articles on High Energy and Nuclear Physics are published in Physics Letters A. The journal''s high standard and wide dissemination ensures a broad readership amongst the physics community. Rapid publication times and flexible length restrictions give Physics Letters A the edge over other journals in the field.