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Hydrothermal synthesis, characterization and nonlinear optical effect of orthorhombic phase Ca2B6O11 · H2O

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Chinese Science Bulletin

Abstract

Hydrothermal treatment of calcium oxide and boric acid mixtures at temperatures between 234 °C and 300 °C has produced a colorless, transparent, orthorhombic compound Ca2B6O11 · H2O. Of the seven known members of the series of hydrated dicalcium hexaborate containing boron-oxygen six-membered ring anionic group (B3O8)-7, only the title compound has been found to have the nonlinear optical effect. The second harmanic generation (SHG) effect of its crystal is larger than that of KH2PO4 (KDP). The reflection spectrum has shown that this compound has no absorption in the experimental wavelength range (800–240 nm). Its crystal structure is favorable for generating the nonlinear optical effect.

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Authors and Affiliations

  1. Department of Earth and Space Sciences, University of Science and Technology of China, 230026, Hefei, China

    Fan Guo & Junxin Wang

  2. Department of Chemistry, University of Science and Technology of China, 230026, Hefei, China

    Peizhen Fu, Feng Liu, Zhiping Yang & Yicheng Wu

Authors
  1. Fan Guo
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  2. Peizhen Fu
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  3. Junxin Wang
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  4. Feng Liu
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  5. Zhiping Yang
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  6. Yicheng Wu
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Correspondence to Fan Guo.

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Guo, F., Fu, P., Wang, J. et al. Hydrothermal synthesis, characterization and nonlinear optical effect of orthorhombic phase Ca2B6O11 · H2O. Chin.Sci.Bull. 45, 1756–1760 (2000). https://doi.org/10.1007/BF02886260

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  • DOI: https://doi.org/10.1007/BF02886260

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