Na 3 Ba 2 (B 3 O 6 ) 2 F: Next Generation of Deep-Ultraviolet Birefringent Materials

Hui Zhang, Min Zhang*, Shilie Pan, Zhihua Yang, Zheng Wang, Qiang Bian, Xueling Hou, Hongwei Yu, Fangfang Zhang, Kui Wu, Feng Yang, Qinjun Peng, Zuyan Xu, Kelvin B. Chang, Kenneth Poeppelmeier

*Corresponding author for this work

Research output: Contribution to journalArticle

87 Scopus citations


Birefringent materials are of great importance in optical communication and the laser industry, as they can modulate the polarization of light. Limited by their transparency range, few birefringent materials, except BaB 2 O 4 (BBO), can be practically used in the deep ultraviolet (UV) region. However, BBO suffers from a phase transition and does not have enough transparency in the deep UV region. By introducing the relatively small alkali metal Na + cation and the F - anion to keep the favorable structural features of BBO, we report a new birefringent crystal Na 3 Ba 2 (B 3 O 6 ) 2 F (NBBF), which has the desirable optical properties. NBBF not only maintains the large birefringence (= n o - n e = 0.2554-0.0750 from 175 nm to 3.35 m) and extends its UV cutoff edge to 175 nm (14 nm shorter than BBO) but also eliminates the phase transition and has the lowest growth temperature (820 °C) among birefringent materials. These results demonstrate that NBBF is an attractive candidate for the next generation of deep UV birefringent materials.

Original languageEnglish (US)
Pages (from-to)523-529
Number of pages7
JournalCrystal Growth and Design
Issue number1
StatePublished - Jan 7 2015

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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