Optical absorption coefficient - wavelength diagram, Transitional

• Cd-S
• Dy-Li-Nb-O
• Gd-Na-O-Tm-W
• Al-O-Y-Yb
• Co-Li-Mg-Mo-O
• transitional
• chalcogen
• nonmetal
• rare earth
• disordered
• cubic
• tetragonal
• orthorhombic
• monoclinic
• trigonal