铌酸锂波导中的非线性Cerenkov辐射
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摘要
研究了质子交换铌酸锂多模波导中的非线性上转换Cerenkov辐射,包括同一导模的直接Cerenkov倍频辐射和不同导模之间耦合产生的Cerenkov和频辐射.实验测得各个点的Cerenkov辐射角,实验值与理论计算结果符合得很好.
Nonlinear Cerenkov radiations in a proton-exchanged LiNbO_3 multi-mode waveguide were investigated,including Cerenkov second harmonic generation and mode-coupled Cerenkov sum frequency generation between different guided-modes.The Cerenkov radiation angles of all the radiation spots were measured,and the experiment results matched well with theoretical calculations.
Nonlinear Cerenkov radiations in a proton-exchanged LiNbO_3 multi-mode waveguide were investigated,including Cerenkov second harmonic generation and mode-coupled Cerenkov sum frequency generation between different guided-modes.The Cerenkov radiation angles of all the radiation spots were measured,and the experiment results matched well with theoretical calculations.
引文
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[4]Deng Xuewei,Chen Xianfeng.Domain wall characterization in ferroelectrics by using localized nonlinearity[J].Opt.Express,2010,18(15):15597-15602.
[5]Sheng Yan,Best A,Butt H J,et al.Three-dimensional ferroelectric domain visualization by Cerenkov-type second harmonic generation[J].Opt.Express,2010,18(16):16539-16545.
[6]钱士雄,王恭明.非线性光学-原理与进展[M].上海:复旦大学出版社,2002:19-52.
[7]Chen Changdong,Su Jie,Zhang Yong,et al.Modecoupling Cerenkov sum-frequency-generation in a multimode planar waveguide[J].Appl.Phys.Lett.,2010,97(16):161112-161112-3.
[8]Zhang Y,Gao Z D,Qi Z,et al.Nonlinear Cerenkov radiation in nonlinear photonic crystal waveguides[J].Phys.Rev.Lett.,2008,100(16):163904.
[2]Frank J M,Tamm I E.Coherent radiation from a fast electron in a medium[J].Dokl.Akad.Nauk SSSR,1937,14:107-113.
[3]Tien P K,Ulrich R,Martin R J.Optical second harmonic generation in form of coherent Cerenkov radiation from a thin-film waveguide[J].Appl.Phys.Lett.,1970,17(10):447-450.
[4]Deng Xuewei,Chen Xianfeng.Domain wall characterization in ferroelectrics by using localized nonlinearity[J].Opt.Express,2010,18(15):15597-15602.
[5]Sheng Yan,Best A,Butt H J,et al.Three-dimensional ferroelectric domain visualization by Cerenkov-type second harmonic generation[J].Opt.Express,2010,18(16):16539-16545.
[6]钱士雄,王恭明.非线性光学-原理与进展[M].上海:复旦大学出版社,2002:19-52.
[7]Chen Changdong,Su Jie,Zhang Yong,et al.Modecoupling Cerenkov sum-frequency-generation in a multimode planar waveguide[J].Appl.Phys.Lett.,2010,97(16):161112-161112-3.
[8]Zhang Y,Gao Z D,Qi Z,et al.Nonlinear Cerenkov radiation in nonlinear photonic crystal waveguides[J].Phys.Rev.Lett.,2008,100(16):163904.