Aka

• B-Ca-Gd-O
• B-Ba-Na-O
• B-Ca-Gd-Lu-Nd-O
• B-Ca-F-O
• Al-B-Ga-Nd-O-Y
• optical properties
• structural properties
• refractive index
• optical absorption
• non-linear optics
• chalcogen
• metalloid
• rare earth
• lanthanoid
• nonmetal
• monoclinic
• trigonal
• hexagonal
• cubic
• orthorhombic