Ti3C2Tx MXene Enabled All-Optical Nonlinear Activation Function for On-Chip Photonic Deep Neural Networks. - Adir Hazan; Barak Ratzker; Danzhen Zhang; Aviad Katiyi; Nachum Frage; Maxim Sokol; Yury Gogotsi; Alina Karabchevsky (CoRR, 2021)