RITU. Theory and Mathematical Formulation of Electromagnetic Wave Propagation in One-Dimensional Photonic Crystals. International Journal of Advanced Research and Multidisciplinary Trends (IJARMT), [S. l.], v. 2, n. 2, p. 1244–1252, 2025. Disponível em: https://www.ijarmt.com/index.php/j/article/view/628. Acesso em: 26 jan. 2026.