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Efficient frequency conversion for cubic harmonic generation at 266 nm in centrosymmetric alpha-BBO crystal

机译：高效频率转换为266nm在CentroSymmetric Alpha-BBO水晶中的266nm

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摘要

Direct third-harmonic generation (THG) is a third-order nonlinear process without the restriction to the symmetric characteristic of crystals. It is of great interest for setting up a (chi)(3) optical parametric oscillator which can be used in multiphoton quantum correlation. To obtain pure and strong THG, we proposed to elect the centrosymmetric crystal with delocalized pi bond as the nonlinear media during the frequency conversion process. An unprecedented cubic harmonic energy 37.6 mu J (average power similar to 37.6 mW, conversion efficiency similar to 2.5%) at 266 nm was generated in alpha-BBO crystal (not the beta-BBO), indicating direct THG in practical application. These results also demonstrated a succinct and efficient way to generate deep-UV laser and another development direction of nonlinear crystals in UV region. (C) 2018 Optical Society of America
机译：直接三次谐波产生（THG）是三阶非线性过程，而不限制晶体的对称特性。 它对于设置（3）光学参数振荡器可以用于多光子量子相关性的兴趣非常令人兴趣。 为了获得纯和强的THG，我们提出在变频过程中用分层的PI键将CentroSymmetric晶体作为非线性介质选举。 在α-BbO晶体（不是β-BBO）中产生前所未有的立方谐波能量37.6μJ（类似于37.6mW的平均功率，类似于2.5％的转化效率），在实际应用中指示直接THG。 这些结果还证明了在UV区域中产生深紫外激光和非线性晶体的另一种发展方向的简洁和有效的方法。 （c）2018年光学学会

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  • 来源
    《Optics Letters》 |2018年第8期|共4页
  • 作者

    Shi Mengjing; Zhang Ge; Li Bingxuan; Li Renfu; Yan Tao; Luo Min; Ye Ning;

  • 作者单位

    Chinese Acad Sci Fujian Inst Res Struct Matter FJIRSM Key Lab Optoelect Mat Chem &

    Phys Fuzhou 350002 Fujian Peoples R China;

    Chinese Acad Sci Fujian Inst Res Struct Matter FJIRSM Key Lab Optoelect Mat Chem &

    Phys Fuzhou 350002 Fujian Peoples R China;

    Chinese Acad Sci Fujian Inst Res Struct Matter FJIRSM Key Lab Optoelect Mat Chem &

    Phys Fuzhou 350002 Fujian Peoples R China;

    Chinese Acad Sci Fujian Inst Res Struct Matter FJIRSM Key Lab Optoelect Mat Chem &

    Phys Fuzhou 350002 Fujian Peoples R China;

    Chinese Acad Sci Fujian Inst Res Struct Matter FJIRSM Key Lab Optoelect Mat Chem &

    Phys Fuzhou 350002 Fujian Peoples R China;

    Chinese Acad Sci Fujian Inst Res Struct Matter FJIRSM Key Lab Optoelect Mat Chem &

    Phys Fuzhou 350002 Fujian Peoples R China;

    Chinese Acad Sci Fujian Inst Res Struct Matter FJIRSM Key Lab Optoelect Mat Chem &

    Phys Fuzhou 350002 Fujian Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
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