A (Tm:LuYAG) laser is used in meteorology to measure wind speed and direction, pollution and moisture.

High-refractive index optical lenses made of lutetium aluminum garnet (LuAG) are used in immersion lithography for manufacturing high-tech integrated circuits (ICs).

Lutetium orthosilicate (LSO) scintillator crystals are used in positron emission tomography (PET) scans for medical diagnostics at the molecular level.

The radioisotope Lutetium-177 is ideal for radiation therapy of small, soft tumors.