Excitation-Power Responsive Upconversion Logic Operations Based on the Multiphoton Process of Praseodymium Ion
Controlling the spectral regulation properties of upconverting (UC) materials by external stimuli, especially excitation power, is a convenient method that is essential for a variety of studies. Here, we report a Pr3+ ion single-doped material that can perform spectral regulation by manipulating excitation power density due to its unique multiphoton processes, which provide a new concept for developing of logic operations. The obtained Pr3+ ion single-doped material can realize spectral regulation under the excitation of the 980 nm laser due to the unique 4f level structure characteristics of Pr3+ ion, which could be used to further designed other UC spectral control materials by combining other rare earth ions based on its unique multiphoton process. Inspired by this, these UC materials could be utilized to design elementary logic operations (INHIBIT, XOR and OR) and integrative logic operations, which open up novel opportunities for the functionalization of micro/nanostructured materials.