Falah Fakhruldeen, Hassan, and Tahreer Safaa Mansour. “All-Optical NOT Gate Based on Nanoring Silver-Air Plasmonic Waveguide”. International Journal of Engineering and Technology 7, no. 4 (October 6, 2018): 2818–2821. Accessed August 17, 2025. https://mail.sciencepubco.com/index.php/IJET/article/view/18955.