Ritu. “Theory and Mathematical Formulation of Electromagnetic Wave Propagation in One-Dimensional Photonic Crystals”. International Journal of Advanced Research and Multidisciplinary Trends (IJARMT) 2, no. 2 (June 26, 2025): 1244–1252. Accessed January 14, 2026. https://ijarmt.com/index.php/j/article/view/628.