Editorial

Abstract

This thematic issue was made for commemorating the 39th anniversary of the Photonics in México. In 1980 the group was created at the Center of Optics Research (CIO) at León, Guanajuato City, and it moved in 1991 to the National Institute of Astrophysics, Optics and Electronics (INAOE) at Puebla city. The Photonics group has graduated several master and doctoral students, that laterwere hired in different Institutes and Universities in México. Now they have created their groups. In this number, you can find the areas where these newgroups are working, not just in specific photonics area but in areas where Photonics had a greatimpact, for example; numerical simulations. Then,from the papers, it is possible to find pure photonics works, optics materials, image processing, and finite elements simulations. This volume of the journal “Computacion y Sistemas” contains selected papers related to numerical simulation for computational image processing, optics, and photonics. The papers were carefully chosen by the editorial board by atleast two reviews by the members of the reviewing committee or additional reviewers. The reviewer stook into account the originality, scientific contribution to the field, soundness and technical quality of the papers.