“Ultrafast All Optical N-Bit Comparator Using 2D Photonic Crystals With Hexagonal Lattice Structure”. Indian Journal of Pure & Applied Physics (IJPAP) 63, no. 11 (November 10, 2025). Accessed May 14, 2026. https://or.niscpr.res.in/index.php/IJPAP/article/view/21770.