The nonlinear optical(NLO)susceptibility and laser induced damage threshold(LIDT)of a material are two inversely correlated indicators of the NLO performance.Here two new NLO active indium substituted chalcohalides,Ba...The nonlinear optical(NLO)susceptibility and laser induced damage threshold(LIDT)of a material are two inversely correlated indicators of the NLO performance.Here two new NLO active indium substituted chalcohalides,Ba_(6)Cs_(2)Ga_(10)Se_(2)0Cl_(4)(x=2,1;x=1,2)possessing a T1-T2 supertetrahedron anionic framework structure,have been successfully synthesized by solid-state reactions.Unlike the transition metal,the indium substitutes gallium at both T1 and T2 sites according to a series of single crystal diffraction data.Property measurements on the polycrystalline samples reveal that such a substitution improves the crystallinity and LIDT without adversely affecting the SHG power if compared with the transition metal substitution.Consequently,the title compounds show an optimal NLO performance among the compounds of this type of structure obtained so far.展开更多
基金supported by the National Natural Science Foundation of China(91422303,21225104,21233009,21301175 and 21171168).
文摘The nonlinear optical(NLO)susceptibility and laser induced damage threshold(LIDT)of a material are two inversely correlated indicators of the NLO performance.Here two new NLO active indium substituted chalcohalides,Ba_(6)Cs_(2)Ga_(10)Se_(2)0Cl_(4)(x=2,1;x=1,2)possessing a T1-T2 supertetrahedron anionic framework structure,have been successfully synthesized by solid-state reactions.Unlike the transition metal,the indium substitutes gallium at both T1 and T2 sites according to a series of single crystal diffraction data.Property measurements on the polycrystalline samples reveal that such a substitution improves the crystallinity and LIDT without adversely affecting the SHG power if compared with the transition metal substitution.Consequently,the title compounds show an optimal NLO performance among the compounds of this type of structure obtained so far.
