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首页> 外文期刊>Advanced Functional Materials >BaMgF_4: An Ultra-Transparent Two-Dimensional Nonlinear Photonic Crystal with Strong x~(3) Response in the UV Spectral Region
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BaMgF_4: An Ultra-Transparent Two-Dimensional Nonlinear Photonic Crystal with Strong x~(3) Response in the UV Spectral Region

机译：BaMgF_4：在紫外光谱区具有强x〜（3）响应的超透明二维非线性光子晶体

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摘要

Ferroelectric patterning is often used in advanced photonics and optoelectronic devices to increase their operational bandwidth and functionality, providing novel and unique performances. However, the extension of the ferroelectric structures to two-dimensional geometries is currently limited to very few oxides and phosphates systems, which constrains its current and future applications. Here, careful processing based on e-beam lithography and poling is employed to fabricate the first example of a two-dimensional nonlinear photonic crystal in Barium Magnesium Fluoride, BaMgF_4, a ferroelectric fluoride crystal with an extraordinary transparency ranging from the deep ultraviolet (≈126 nm) to the mid infrared (≈13 (μm). The optical characterization shows the possibility of obtaining simultaneously up to three different Cerenkov-type second harmonic generation processes distributed in a conical geometry via x~(2)-quasi-phase-matching technique. Additionally, the remarkably high X~(3) nonlinear response of BaMgF_4 crystal in the UV spectral region is exploited to demonstrate what is believed to be the highest direct UV-third harmonic generation conversion efficiency in a solid state system via pure X~(3) nonlinear process. Together, the results highlight the outstanding opportunities offered by nonlinear photonic structures as innovative avenues to manipulate the light generation and control with reliable multifunctional optical character.
机译：铁电图案化通常用于先进的光子学和光电设备中，以增加其工作带宽和功能，从而提供新颖而独特的性能。但是，铁电结构扩展到二维几何形状目前仅限于很少的氧化物和磷酸盐系统，这限制了其当前和未来的应用。在此，我们基于电子束光刻和极化进行了仔细的处理，以制造氟化钡钡中的二维非线性光子晶体BaMgF_4的第一个示例，这是一种铁电氟化物晶体，具有极高的透明度，范围从深紫外线（≈126） nm）到中红外（≈13（μm）。光学特性表明通过x〜（2）-准相位匹配可以同时获得多达三个不同的圆锥形几何分布的切伦科夫型二次谐波生成过程此外，还利用BaMgF_4晶体在紫外光谱区域中的极高的X〜（3）非线性响应，证明了通过纯X〜在固态系统中最高的直接UV-三次谐波生成转换效率。 （3）非线性过程在一起的结果突出了非线性光子结构作为操纵光子的创新途径提供的巨大机会。具有可靠的多功能光学特性的控制和控制。

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  • 来源
    《Advanced Functional Materials》 |2014年第11期|1509-1518|共10页
  • 作者

    Luis Mateos; Mariola O. Ramirez; Irene Carrasco; Pablo Molina; Juan F. Galisteo-Lopez; Encarnacion G. Villora; Carmen de las Heras; Kiyoshi Shimamura; Cefe Lopez; Luisa E. Bausa;

  • 作者单位

    Fisica de Materiales and Institute Nicola's Cabrera Universidad Autonoma de Madrid Madrid, 28049, Spain;

    Fisica de Materiales and Institute Nicola's Cabrera Universidad Autonoma de Madrid Madrid, 28049, Spain;

    Fisica de Materiales and Institute Nicola's Cabrera Universidad Autonoma de Madrid Madrid, 28049, Spain;

    Fisica de Materiales and Institute Nicola's Cabrera Universidad Autonoma de Madrid Madrid, 28049, Spain;

    Instituto de Ciencia de Materiales de Madrid (CSIC) Calle Sor Juana lnes de la Cruz 3, Madrid, 28049, Spain;

    National Institute for Materials Center 1-1 Namiki, Tsukuba, 305-0044, Japan;

    Fisica de Materiales and Institute Nicola's Cabrera Universidad Autonoma de Madrid Madrid, 28049, Spain;

    National Institute for Materials Center 1-1 Namiki, Tsukuba, 305-0044, Japan;

    Instituto de Ciencia de Materiales de Madrid (CSIC) Calle Sor Juana lnes de la Cruz 3, Madrid, 28049, Spain;

    Fisica de Materiales and Institute Nicola's Cabrera Universidad Autonoma de Madrid Madrid, 28049, Spain;

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