TY - JOUR
T1 - A Deep-Ultraviolet Nonlinear Optical Crystal
T2 - Strontium Beryllium Borate Fluoride with Planar Be(O/F)3 Groups
AU - Yu, Na
AU - Wang, Shichao
AU - Ye, Ning
AU - Liang, Fei
AU - Lin, Zheshuai
AU - Luo, Min
AU - Poeppelmeier, Kenneth R.
N1 - Publisher Copyright:
© 2016 American Chemical Society.
PY - 2016/7/12
Y1 - 2016/7/12
N2 - A new strontium beryllium borate fluoride, Sr3[(BexB1-x)3B3O10][Be(O1-xFx)3] x = 0.30 (SBBOF), designed to be used in the deep-UV nonlinear optical (NLO) application, was grown by the spontaneous crystallization of a molten flux of SrO-B2O3-LiF. It crystallizes in the space group R3m (No. 160) with the following unit cell dimensions: a = 10.3179(11) Å, c = 8.3958(13) Å, V = 774.1(2) Å3, and Z = 3. SBBOF consists of [(BexB1-x)3B3O10] anionic groups and isolated [Be(O1-xFx)3] planar groups. Importantly, a new strategy to improve the birefringence was introduced by changing the local configuration of isolated structural units from trigonal pyramids to planar triangles. UV-vis diffuse reflectance spectroscopy indicates that the short-wavelength absorption edge of SBBOF is below 200 nm. The band structure and refractive index were calculated. Second harmonic generation (SHG) was measured using the Kurtz and Perry technique, which showed that SBBOF is a phase-matchable material in both visible and UV regions, and its measured SHG coefficient is 2.2 times as large as that of d36 (KDP) at 1064 nm.
AB - A new strontium beryllium borate fluoride, Sr3[(BexB1-x)3B3O10][Be(O1-xFx)3] x = 0.30 (SBBOF), designed to be used in the deep-UV nonlinear optical (NLO) application, was grown by the spontaneous crystallization of a molten flux of SrO-B2O3-LiF. It crystallizes in the space group R3m (No. 160) with the following unit cell dimensions: a = 10.3179(11) Å, c = 8.3958(13) Å, V = 774.1(2) Å3, and Z = 3. SBBOF consists of [(BexB1-x)3B3O10] anionic groups and isolated [Be(O1-xFx)3] planar groups. Importantly, a new strategy to improve the birefringence was introduced by changing the local configuration of isolated structural units from trigonal pyramids to planar triangles. UV-vis diffuse reflectance spectroscopy indicates that the short-wavelength absorption edge of SBBOF is below 200 nm. The band structure and refractive index were calculated. Second harmonic generation (SHG) was measured using the Kurtz and Perry technique, which showed that SBBOF is a phase-matchable material in both visible and UV regions, and its measured SHG coefficient is 2.2 times as large as that of d36 (KDP) at 1064 nm.
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U2 - 10.1021/acs.chemmater.6b01111
DO - 10.1021/acs.chemmater.6b01111
M3 - Article
AN - SCOPUS:84978410587
VL - 28
SP - 4563
EP - 4571
JO - Chemistry of Materials
JF - Chemistry of Materials
SN - 0897-4756
IS - 13
ER -