Used in solid-state lasers for medical and dental procedures, especially in minimally invasive surgeries and kidney stone treatment.

Essential component in holmium-doped yttrium aluminum garnet (Ho:YAG) lasers for precision cutting and ablation.

Serves as a wavelength calibrator in optical spectrophotometers due to its sharp absorption peaks.

Added to control rods in nuclear reactors for its high neutron absorption capability, helping regulate fission reactions.

Utilized in magnetic research for creating strong magnetic fields in alloys like holmium titanate.

Applied in the production of specialized glass and cubic zirconia to impart yellow or red coloration for decorative and artistic purposes.