Publication | Open Access
Beryllium‐Free β‐Rb<sub>2</sub>Al<sub>2</sub>B<sub>2</sub>O<sub>7</sub> as a Possible Deep‐Ultraviolet Nonlinear Optical Material Replacement for KBe<sub>2</sub>BO<sub>3</sub>F<sub>2</sub>
178
Citations
39
References
2017
Year
A new beryllium-free deep-ultraviolet (DUV) nonlinear optical (NLO) material, β-Rb<sub>2</sub> Al<sub>2</sub> B<sub>2</sub> O<sub>7</sub> (β-RABO), has been synthesized and characterized. The chiral nonpolar acentric material shows second-harmonic generation (SHG) activity at both 1064 and 532 nm with efficiencies of 2×KH<sub>2</sub> PO<sub>4</sub> and 0.4×β-BaB<sub>2</sub> O<sub>4</sub> , respectively, and exhibits a short absorption edge below 200 nm. β-Rb<sub>2</sub> Al<sub>2</sub> B<sub>2</sub> O<sub>7</sub> has a three-dimensional structure of corner-shared Al(BO<sub>3</sub> )<sub>3</sub> O polyhedra. The discovery of β-RABO shows that through careful synthesis and characterization, replacement of KBe<sub>2</sub> BO<sub>3</sub> F<sub>2</sub> (KBBF) by a Be-free DUV NLO material is possible.
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