Used in specialized lighting and display technologies due to its luminescent properties when doped into phosphor materials.

It serves as a dopant in solid-state lasers and optical amplifiers, particularly in mid-infrared wavelength applications.

Employed in research settings for its magnetic characteristics, especially in the development of advanced magnetic storage media and cryogenic magnetic refrigeration systems.

Also utilized in the synthesis of other dysprosium-containing compounds for nuclear reactor control rods, owing to its high neutron absorption capacity.