Laser-induced breakdown spectroscopy (LIBS) is a rapid chemical analysis technology that has been well developed for trace element analyses in gases, liquids, and solids. It uses a high-power laser pulse to elicit short-lived, high-temperature plasma in a sample. As the plasma cools, it emits spectral peaks that correspond to elements in the periodic table. Recent exploration has extended LIBS via filament-induced breakdown spectroscopy (FIBS), which has better sensitivity and greater stability. Yet FIBS is intrinsically limited by the guided laser intensities in the filamentation itself.