Fluorescence microscopy is a type of optical microscopy that utilizes the phenomenon of fluorescence to visualize samples. It operates by exciting fluorescent molecules (fluorophores) within or attached to a specimen with light of a specific wavelength, and detecting the resulting emitted light at a longer wavelength. This fundamental methodology is employed across various scientific disciplines, particularly in biology and materials science, to investigate the spatial distribution, dynamics, and interactions of specific components with high sensitivity and molecular specificity, providing crucial insights into cellular structures, processes, and material properties often at the cellular or subcellular level.