Synthetic-domain Neural Networks using Integrated Nonlinear Phononics on Lithium Niobate
Jun Ji, Zichen Xi, Joseph G. Thomas, Bernadeta Srijanto, Ivan I. Kravchenko, Ming Jin, Yizheng Zhu, Wenjie Xiong, Linbo Shao · 2025
Leveraging strong second-order nonlinearities of lithium niobate, we demonstrate synthetic-domain neural networks with both efficient linear and nonlinear operations. A high accuracy of 98.2% is experimentally achieved for a four-class classification task.