Pérez Rodríguez, J., and M. Palomino Ovando. “Defects in Periodic Refractive Index Structures With Omnidirectional Gap”. Superficies y Vacío 25, no. 4 (December 15, 2012): 218-222. Accessed May 12, 2024. https://superficiesyvacio.smctsm.org.mx/index.php/SyV/article/view/191.