论文标题
在z切割的尼橙酸酯纳米韦韦德液中，超高效率和高度可调的第二谐波生成
Ultra-efficient and highly-tunable second-harmonic generation in Z-cut periodically poled lithium niobate nanowaveguides
论文作者
论文摘要
绝缘子（LNOI）上的薄膜锂锂已成为线性，非线性和电启动的卓越集成 - 光子型平台。在这里，我们结合了准阶段匹配，分散工程和紧密模式限制，以实现高效率和宽波长可调性的非线性参数过程。在毫米长的Z-CUT LNOI波导上，我们展示了超高效率（$ 1900 \ pm500 \％$ w $^{ - 1} $ cm $^{ - 2} $），高度可调（-1.71 nm/k）第二次谐音，从1530年到1530年至1583 nm by Type-by type-by type-by type-by type-0 quasi-phase-quasi-phase-phase-phase。我们的技术适用于光学谐波生成，量子光源，频率转换以及跨IR到IR光谱频段的许多其他光子信息处理。
Thin-film lithium niobate on insulator (LNOI) has emerged as a superior integrated-photonics platform for linear, nonlinear, and electro-optics. Here we combine quasi-phase-matching, dispersion engineering, and tight mode confinement to realize nonlinear parametric processes with both high efficiency and wide wavelength tunability. On a millimeter-long, Z-cut LNOI waveguide, we demonstrate ultra-efficient ($1900\pm500 \% $W$^{-1}$cm$^{-2}$) and highly tunable (-1.71 nm/K) second-harmonic generation from 1530 to 1583 nm by type-0 quasi-phase-matching. Our technique is applicable to optical harmonic generation, quantum light sources, frequency conversion, and many other photonic information processing across visible to mid-IR spectral bands.
