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首页> 外文期刊>Quantum Electronics, IEEE Journal of >Exploiting the Optical Quadratic Nonlinearity of Zinc-Blende Semiconductors for Guided-Wave Terahertz Generation: A Material Comparison
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Exploiting the Optical Quadratic Nonlinearity of Zinc-Blende Semiconductors for Guided-Wave Terahertz Generation: A Material Comparison

机译:开发用于导波太赫兹生成的锌-布雷德半导体的光学二次非线性:材料比较

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摘要

We present a detailed analysis and comparison of dielectric waveguides made of CdTe, GaP, GaAs and InP for modal phase matched optical difference frequency generation (DFG) in the terahertz domain. From the form of the DFG equations, we derived the definition of a very general figure of merit (FOM). In turn, this FOM enabled us to compare different configurations, by taking into account linear and nonlinear susceptibility dispersion, terahertz absorption, and a rigorous evaluation of the waveguide modes properties. The most efficient waveguides found with this procedure are predicted to approach the quantum efficiency limit with input optical power in the order of kWs.
机译:我们提供了由CdTe,GaP,GaAs和InP制成的介电波导的详细分析和比较,用于太赫兹域的模态相位匹配光差频率生成(DFG)。从DFG方程的形式,我们得出了非常普遍的品质因数(FOM)的定义。反过来,此FOM使我们能够通过考虑线性和非线性磁化率色散,太赫兹吸收以及对波导模式特性的严格评估来比较不同的配置。预计通过此过程找到的最高效的波导将以kWs的数量级输入光功率接近量子效率极限。

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