Holmium Oxide

Used as a specialized colorant for glass and cubic zirconia, and as a calibration standard for spectrophotometers due to its sharp absorption bands.

Fabricated into high-purity sputtering targets for the deposition of thin films in optical and magneto-optical applications.

Applied as a thin film coating to utilize its specific refractive index and narrow absorption bands in the visible and near-infrared spectrum.

Used as a source material in vacuum evaporation processes to create thin layers for electronic and optical components.