Tunable multi-wavelength third-harmonic generation using exposed-core microstructured optical fiber.
Tunable multi-wavelength third-harmonic generation using exposed-core microstructured optical fiber.
复制标题
使用裸芯微结构光纤产生可调谐多波长三次谐波。
DOI：
10.1364/ol.44.000626
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发表时间：
2019
期刊：
影响因子：
3.6
通讯作者：
M. Schmidt
中科院分区：
文献类型：
--
作者：
S. Warren;Kay Schaarschmidt;M. Chemnitz;E. Schartner;H. Schneidewind;H. Ebendorff‐Heidepriem;M. Schmidt
我们表明，暴露的核心微结构光纤提供多个自由度定制三次谐波产生通过芯直径，输入偏振，和纳米膜沉积。改变这些参数允许控制红外泵浦波长和所产生的可见波长之间的相位匹配位置。在这封信中，我们展示了如何增加核心直径比以前的实验（2.57 μm相比，1.85 μm）允许产生多个波长，这可以通过旋转输入泵浦偏振和沉积介电纳米薄膜进一步控制。这可以为光谱学或非线性显微镜等应用提供高度可定制的光源。
We demonstrate that exposed-core microstructured optical fibers offer multiple degrees of freedom for tailoring third-harmonic generation through the core diameter, input polarization, and nanofilm deposition. Varying these parameters allows control of the phase-matching position between an infrared pump wavelength and the generated visible wavelengths. In this Letter, we show how increasing the core diameter over previous experiments (2.57 μm compared to 1.85 μm) allows the generation of multiple wavelengths, which can be further controlled by rotating the input pump polarization and the deposition of dielectric nanofilms. This can lead to highly tailorable light sources for applications such as spectroscopy or nonlinear microscopy.