New development of nonlinear optical crystals for the ultraviolet region with molecular engineering approach
作者:
Chuangtian Chen,
Yebin Wang,
Younan Xia,
Baichang Wu,
Dingyan Tang,
Kechen Wu,
Zeng Wenrong,
Linhua Yu,
Linfeng Mei,
期刊:
Journal of Applied Physics
(AIP Available online 1995)
卷期:
Volume 77,
issue 6
页码: 2268-2272
ISSN:0021-8979
年代: 1995
DOI:10.1063/1.358814
出版商: AIP
数据来源: AIP
摘要:
Potassium fluoroboratoberyllate KBe2BO3F2(KBBF) has been revealed theoretically and experimentally as a novel ultraviolet nonlinear optical crystal, but it is found to be very difficult to grow in a large size, because of the weak binding interaction between the (Be2BO3)∞units, which leads to an apparent layer habit in the growth. By using a molecular engineering approach, oxygen bridges when brought in to strengthen the binding between the infinite units are found to be useful to overcome the above shortcoming of KBBF, and in the light of it another new ultraviolet nonlinear optical crystal—strontium boratoberyllate Sr2Be2B2O7(SBBO) has been discovered. The linear optical properties of SBBO are similar to KBBF’s, but its nonlinear optical properties are better than that of the latter.d22(SBBO)&bartil;d22(&bgr;‐BaB2O4), which is two times higher thand11of KBBF. SBBO has very good mechanical properties, and it is also not deliquescent. So SBBO is expected to have great potential for the application in ultraviolet nonlinear optical devices. ©1995 American Institute of Physics.
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