J. Salinas-Luna is a Mexican optician and researcher in physics. During their PhD work in optical shop testing at the Instituto de Astronomía of UNAM (IA-UNAM) in Ensenada, B.C., México, they performed the cophasing of segmented surfaces of telescopes for correcting relative piston errors and tilts by means of the Optical Ronchi test simultaneously with the Shack-Hartmann interferometer and polarimetric tests. The main contribution of their PhD work to astronomy was the demonstration and applicability that the classical Ronchi test can measure a piston term in a segmented primary mirror prototype (1998–2004). Afterwards, they held a post-doctoral position at the Center of Nano-Sciences and Nano-Technology of UNAM (CNyN-UNAM), where optical spectroscopy based on laser ablation was conducted from 2004 to 2006. In 2007, they were Professor and Researcher at INAOE in Tonantzintla, Puebla, Mexico, where they worked with optical testing. Currently, they work at the Universidad del Mar in the Mexican state of Oaxaca, detecting contaminants in water by using optical tests such as Raman Spectroscopy (RS) and Surface Enhanced Raman Spectroscopy (SERS) with Al, Cu, Ag, Au, or Ag/Au hybrid substrates to enhance the Raman signal and thereby detect low contaminant concentrations. Due to constant pollution increase in the region, degradation path monitoring of contaminants applying optics is their future area of interest.