KNB (KNbB2O6) and its isomorphs: a new family of nonlinear optical materials

John F. Nicholls; Bruce H. T. Chai; Deborah L. Corker; Joseph C. Calabrese; B. Henderson

doi:10.1117/12.149261

21 July 1993 KNB (KNbB2O6) and its isomorphs: a new family of nonlinear optical materials

John F. Nicholls, Bruce H. T. Chai, Deborah L. Corker, Joseph C. Calabrese, B. Henderson

Proceedings Volume 1863, Growth, Characterization, and Applications of Laser Host and Nonlinear Crystals II; (1993) https://doi.org/10.1117/12.149261
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States

Abstract

The new crystal KNB (KNbB₂O₆) has been discovered and the XYB₂O₆ family of isomorphs (where X equals Cs, Rb, K, Y equals Nb or Ta) has been identified as a potential structure for non-linear optical applications. KNB was grown using a resistance heated TSSG scheme in an excess of B₂O₃ and K₂O. It was found that KNB has orthorhombic symmetry with space group Pna2₁, unit cell parameters a equals 31.236(4), b equals 7.315(2), c equals 9.210(4) angstroms, and is isostructural with RNB (RbNbB₂O₆), which was also grown. The non-linear properties of both members were assessed and discussions are presented on the origin of the non-linearity in this family of compounds.

Citation Download Citation

John F. Nicholls, Bruce H. T. Chai, Deborah L. Corker, Joseph C. Calabrese, and B. Henderson "KNB (KNbB2O6) and its isomorphs: a new family of nonlinear optical materials", Proc. SPIE 1863, Growth, Characterization, and Applications of Laser Host and Nonlinear Crystals II, (21 July 1993); https://doi.org/10.1117/12.149261

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