Stokes and anti-Stokes luminescence in Tm3+/Yb3+-doped Lu3Ga5O12 nano-garnets: a study of multipolar interactions and energy transfer dynamics

Nanocrystalline Lu₃Ga₅O₁₂ garnets doped with Tm³⁺/Yb³⁺ ions have been synthesized and characterized for their structural, Stokes and anti-Stokes luminescence properties. Multipolar interactions among active ions, energy transfer and diffusion parameters have been estimated in the nano-garnets.