Dynamic laser protection window based on a topological state photonic crystal of a nonlinear LiNbO3 interface

• DOI: 10.1364/ol.539039
• Publication Date: 2024-11-20T12:00:19Z
• Authors: Guichuan Xu; Zhengang Lu; Jing Yuan; Jiubin Tan

The accelerated advancement of high-energy laser technology has resulted in an increased necessity for multifunctional protection. Herein, we present investigation into a static visible and dynamic 1064 nm protection window. Through studying the photonic crystal energy band structure topological interface state properties, both 66.49% average light transmittance 84.01% low-energy are achieved. combination large third-order nonlinear effect LiNbO 3 strong field localization enables 27.54 mJ/cm 2 threshold below that traditional materials. This study offers what believe to be new avenues development optical windows novel elements.