The accelerated advancement of high-energy laser technology has resulted in an increased necessity for multifunctional laser protection. Herein, we present an investigation into a static visible and dynamic 1064 nm laser protection window. Through studying the photonic crystal energy band structure and topological interface state properties, both 66.49% average visible light transmittance and 84.01% low-energy 1064 nm laser transmittance are achieved. The combination of a large third-order nonlinear effect of LiNbO and strong light field localization of a topological interface state enables a 27.54 mJ/cm protection threshold below that of traditional materials. This study offers what we believe to be new avenues for the development of multifunctional optical windows and novel optical elements.
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| http://dx.doi.org/10.1364/OL.539039 | DOI Listing |
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