Birefringent, Chalcogen, Nonmetal, Optical properties

• Ni-O
• Cd-Se
• Ag-Ga-S
• Ba-Na-Nb-O
• Gd-Mo-O
• refractive index
• phonons
• optical absorption
• values of refractive index
• non-linear optics
• nonmetal
• chalcogen
• birefringent
• non-disordered
• transitional
• tetragonal
• trigonal
• orthorhombic
• hexagonal
• monoclinic