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New Borate Structures for Nlo Applications

Published online by Cambridge University Press:  15 February 2011

Douglas A. Keszler,
Annapoorna Akella,
Kathleen I. Schaffers and
Theodore Alekel III
Douglas A. Keszler
Affiliation:
Oregon State University, Department of Chemistry, Corvallis, OR 97331-4003
Annapoorna Akella
Affiliation:
Oregon State University, Department of Chemistry, Corvallis, OR 97331-4003
Kathleen I. Schaffers
Affiliation:
Oregon State University, Department of Chemistry, Corvallis, OR 97331-4003
Theodore Alekel III
Affiliation:
Oregon State University, Department of Chemistry, Corvallis, OR 97331-4003
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Abstract

By considering selected examples of new structure types, guidelines are set forth for the synthesis of new solid-state inorganic borates that are likely to have desirable properties for nonlinear optical applications. The structures of two new, noncentrosymmetric orthoborate fluorides BaCaBO3F and Ba7(BO3)3F5 demonstrate a feasibility for controlling linear optical properties and for producing noncentrosymmetric borates that melt congruently. The structure of SrLi(B3O5)3 represents an additional example of a noncentrosymmetric borate resulting from chirality of the B3O7 ring. In addition to potential practical value, crystals of the type AMOB2O5 (A = K, Rb, and Cs; M = Nb and Ta) provide a unique means for examining the structural dependent interrelationships of linear and nonlinear optical properties.

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