Abstract
Lithium triborate (LBO) is a newly discovered nonlinear optic crystal [1]. Preliminary investigations indicate that LBO could be an outstanding crystal for nonlinear optics. The crystal has a sufficiently large nonlinear coefficient, good chemical stability and excellent moisture resistance. Its hardness is reasonable. Phase matching can be carried out at room temperature. In addition it has a high damage threshold, a wide transparency range and large acceptance angle for phase matching. In agreement with Chen, a SHG conversion efficiency for LBO at 1064 nm of up to 60% was obtained. In this paper we review the background of LBO, and record its crystal growth characteristics, crystal structure and properties.
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