Optical second harmonic generation properties of BiB3O6.
Optical second harmonic generation properties of BiB3O6.
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DOI：
10.1364/opex.12.006002
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发表时间：
2004-11
期刊：
影响因子：
3.8
通讯作者：
Masood Ghotbi;M. Ebrahim-Zadeh
中科院分区：
文献类型：
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作者：
Masood Ghotbi;M. Ebrahim-Zadeh
本文研究了新型非线性材料BiB_3O_6的光学性质，并将其应用于可见光到红外波段的二次谐波产生。我们确定了三个主要光学平面的相位匹配条件和有效非线性系数、接受带宽、空间和时间离散、群速度色散和双相位匹配行为。我们还报告在这种材料的实验研究，其中高效，高平均功率的飞秒脉冲的二次谐波产生到蓝色的证明。使用130-fs的基本脉冲在76 MHz，单程二次谐波平均功率高达830 mW，大于50%的转换效率已产生的可调谐范围为375-435 nm。使用互相关测量在100妈妈β-BaB 2 O 4晶体的二次谐波脉冲持续时间为220 fs。我们的理论研究结果验证了实验数据，计算和测量之间获得了良好的协议。BiB 3 O 6与β-BaB 2 O 4的直接比较也证实了这种新材料用于飞秒脉冲二次谐波产生的性能改善。
We present studies of the optical properties of the new nonlinear material BiB3O6 for second harmonic generation from the visible to infrared. We have determined the phase-matching conditions and effective nonlinear coefficients in the three principal optical planes, acceptance bandwidths, spatial and temporal walkoff, group velocity dispersion and double phase-matching behaviour. We also report on experimental studies in this material, where efficient, high-average-power second harmonic generation of femtosecond pulses into the blue is demonstrated. Using 130-fs fundamental pulses at 76 MHz, single-pass second harmonic average powers as much as 830 mW at greater than 50% conversion efficiency have been generated over a tunable range of 375-435 nm. Using cross-correlation measurements in a 100-mum beta-BaB2O4 crystal second harmonic pulse durations of 220 fs are obtained. Our theoretical findings are verified by experimental data, where excellent agreement between the calculations and measurements is obtained. Direct comparison of BiB3O6 with beta-BaB2O4 also confirms improved performance of this new material for second harmonic generation of femtosecond pulses.