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Excitation Mode-Dependent Terahertz Radiation Generation From a Subwavelength Si–SiO2–LiNbO3–polymer–Si planar Waveguide
IEEE Transactions on Terahertz Science and Technology ( IF 3.2 ) Pub Date : 2021-03-05 , DOI: 10.1109/tthz.2021.3063847
Brett N. Carnio , Basem Y. Shahriar , Eric Hopmann , Abdulhakem Y. Elezzabi

Optical rectification is investigated in an Si–SiO 2 –LiNbO 3 –polymer–Si planar waveguiding arrangement that generates and emits terahertz (THz) radiation as Cherenkov waves. Each mode supported by the waveguide (i.e., the TE 0 , TE 1 , and TE 2 mode) generates a THz electric field pulse that is emitted at a distinct Cherenkov angle and contains frequencies up to ∼3 THz. This waveguiding platform automatically satisfies the phase-matching condition via Cherenkov emission and permits subwavelength confinement of the excitation pulse.

中文翻译:

从亚波长 Si–SiO 2 –LiNbO 3 –聚合物–Si平面波导产生依赖于激发模式的太赫兹辐射

在 Si-SiO 2 -LiNbO 3 -聚合物 -Si平面波导装置中研究了光学整流,该 装置产生和发射太赫兹 (THz) 辐射作为切伦科夫波。波导支持的每个模式(即 TE 0 、TE 1 和 TE 2模式)产生一个 THz 电场脉冲,该脉冲以不同的 Cherenkov 角发射并且包含高达 ~3 THz 的频率。该波导平台通过切伦科夫发射自动满足相位匹配条件,并允许激发脉冲的亚波长限制。
更新日期:2021-03-05
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