Crystals (Dec 2021)

Flux Growth and Properties of Volatile Bromine-Containing UV Nonlinear Optical Crystal K<sub>3</sub>B<sub>6</sub>O<sub>10</sub>Br

  • Huaiyu Hu,
  • Chen Zhou,
  • Jiahao Jiao,
  • Siru Guo,
  • Yanna Chen,
  • Min Zhang

DOI
https://doi.org/10.3390/cryst12010033
Journal volume & issue
Vol. 12, no. 1
p. 33

Abstract

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A UV Nonlinear optical (NLO) crystal is one of the key devices in all-solid-state laser technology, and borate halides show outstanding potential due to their abundant structural diversity and short UV cut-off edges. In this article, the sizable UV NLO crystal of K3B6O10Br (KBOB) has been grown with lead-containing and lead-free fluxes systems using the high-temperature top-seeded solution growth (TSSG) method. Energy Dispersive X-ray Spectroscopy (EDS) and transmittance spectra illustrate the influence of Pb2+ ions on the transmittance properties and laser-induced damage threshold (LDT). The thermal property, namely, thermal expansion, thermal conductivity, and thermal diffusivity curves, were characterized. Moreover, a small variation of thermal refractive indexes was analyzed to illustrate the advantage of KBOB in the application for temperature-fluctuated specific regions.

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