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首页> 外文期刊>Optics Letters >mu J-level multi-cycle terahertz generation in a periodically poled Rb:KTP crystal
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mu J-level multi-cycle terahertz generation in a periodically poled Rb:KTP crystal

机译:MU J-Level多循环太赫兹在定期极化的RB中产生:KTP晶体

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摘要

We demonstrate multi-cycle terahertz (MC-THz) generation in a 15.5 mm long periodically poled rubidium (Rb)-doped potassium titanyl phosphate (Rb:PPKTP) crystal with a poling period of 300 mu m. By cryogenically cooling the crystal to 77 K, up to 0.72 mu J terahertz energy is obtained at a frequency of 0.5 THz with a 3 GHz bandwidth. A maximum internal optical-to-terahertz conversion efficiency of 0.16% is achieved, which is comparable with results achieved using periodically poled lithium niobate crystal. Neither photorefractive effects nor damage was observed with up to 900 mJ/cm(2), showing the great potential of Rb:PPKTP for multi-millijoule-level MC-THz generation. (C) 2021 Optical Society of America
机译:我们展示了在一个极化周期为300μm的15.5 mm长周期极化掺铷磷酸钛钾(Rb:PPKTP)晶体中产生的多周期太赫兹(MC-THz)。通过将晶体低温冷却至77 K,在0.5太赫兹频率和3 GHz带宽下获得了高达0.72μJ的太赫兹能量。获得了0.16%的最大内部光-太赫兹转换效率,这与使用周期极化铌酸锂晶体获得的结果相当。在高达900mJ/cm(2)的情况下,既没有观察到光折变效应,也没有观察到损伤,这表明Rb:PPKTP具有产生多毫焦耳级MC-THz的巨大潜力。(2021)美国光学学会

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  • 来源
    《Optics Letters》 |2021年第4期|共4页
  • 作者单位

    DESY Ctr Free Electron Laser Sci CFEL Notkestr 85 D-22607 Hamburg Germany;

    DESY Ctr Free Electron Laser Sci CFEL Notkestr 85 D-22607 Hamburg Germany;

    DESY Ctr Free Electron Laser Sci CFEL Notkestr 85 D-22607 Hamburg Germany;

    Royal Inst Technol KTH Dept Appl Phys Roslagstullsbacken 21 S-10691 Stockholm Sweden;

    Royal Inst Technol KTH Dept Appl Phys Roslagstullsbacken 21 S-10691 Stockholm Sweden;

    Royal Inst Technol KTH Dept Appl Phys Roslagstullsbacken 21 S-10691 Stockholm Sweden;

    DESY Ctr Free Electron Laser Sci CFEL Notkestr 85 D-22607 Hamburg Germany;

    DESY Ctr Free Electron Laser Sci CFEL Notkestr 85 D-22607 Hamburg Germany;

    DESY Ctr Free Electron Laser Sci CFEL Notkestr 85 D-22607 Hamburg Germany;

    DESY Ctr Free Electron Laser Sci CFEL Notkestr 85 D-22607 Hamburg Germany;

    Univ Hamburg Phys Dept Luruper Chaussee 149 D-22761 Hamburg Germany;

    Hamburg Ctr Ultrafast Imaging Luruper Chaussee 149 D-22761 Hamburg Germany;

    DESY Ctr Free Electron Laser Sci CFEL Notkestr 85 D-22607 Hamburg Germany;

    DESY Ctr Free Electron Laser Sci CFEL Notkestr 85 D-22607 Hamburg Germany;

    DESY Ctr Free Electron Laser Sci CFEL Notkestr 85 D-22607 Hamburg Germany;

    DESY Ctr Free Electron Laser Sci CFEL Notkestr 85 D-22607 Hamburg Germany;

    DESY Ctr Free Electron Laser Sci CFEL Notkestr 85 D-22607 Hamburg Germany;

    DESY Ctr Free Electron Laser Sci CFEL Notkestr 85 D-22607 Hamburg Germany;

    Royal Inst Technol KTH Dept Appl Phys Roslagstullsbacken 21 S-10691 Stockholm Sweden;

    Royal Inst Technol KTH Dept Appl Phys Roslagstullsbacken 21 S-10691 Stockholm Sweden;

    DESY Ctr Free Electron Laser Sci CFEL Notkestr 85 D-22607 Hamburg Germany;

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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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