Non-linear optical properties, Quaternary

• H-K-O-P
• B-Cl-O-Pb
• B-Br-O-Pb
• B-Ca-Gd-O
• K-O-P-Ti
• quaternary
• chalcogen
• nonmetal
• non-disordered
• transitional
• orthorhombic
• monoclinic
• trigonal
• tetragonal
• cubic