Kasprowicz

• Er-Gd-Ho-K-O-Tm-W-Yb
• Er-Gd-Ho-K-O-W-Yb
• K-O-W-Y
• B-Bi-O-Pr-Zn
• B-Li-O
• optical properties
• phonons
• luminescence
• wavenumber of optical phonon
• mechanical properties
• chalcogen
• luminescent
• rare earth
• transitional
• alkali
• monoclinic
• orthorhombic
• tetragonal
• hexagonal