Alkali, Nonmetal, Optical absorption, Tetragonal

• B-Cu-Li-O
• Gd-Na-O-W
• Gd-Na-O-Tm-W
• K-Li-Nb-O
• F-Li-Nd-Y
• optical absorption coefficient
• transmittance
• nonmetal
• alkali
• transitional
• chalcogen
• disordered