Prabha, K. Rama, R. Arunkumar, and S. Robinson. “All Optical Half Adder Based on Two Dimensional Photonic Crystals”. Emerging Trends in Engineering Research and Technology Vol. 6 (July 9, 2020): 45-62. Accessed June 19, 2026. https://stm1.bookpi.org/index.php/etert-v6/article/view/1677.