Ultra-transparent lanthanide–tellurite glass-ceramics: a potential matrix for broadband emission at ∼3 µm and optical limiting

Formulation of mechanically robust lanthanide titanium tellurite glasses by controlling crystallization enthalpy, which enables Ln 2 Te 6 O 15 “anti-glass” crystallite-embedded ultra-transparent glass-ceramics upon choosing suitable lanthanide (La/Y/Lu).