论文标题
快速红外光谱纳米成像，并具有纳米FTIR全息图
Rapid infrared spectroscopic nano-imaging with nano-FTIR holography
论文作者
论文摘要
散射型扫描近场光学显微镜（S-SNOM）及其衍生，傅立叶变换红外纳米光谱（Nano-FTIR）是红外（IR）纳米影像学和光谱技术的新兴技术，其应用于在纳米植物，化学物质和材料科学的各种领域的应用。但是，当前纳米FTIR技术的获取率有限，光谱纳米影像仍然受到挑战。在这里，我们结合了S-SNOM，纳米FTIR和合成光学全息图（SOH），以实现前所未有的速度（在20分钟内进行8光谱分辨率的图像）实现红外光谱纳米影像，我们使用聚合物复合样品进行了证明。除了快速之外，我们的方法还承诺在长期IR光谱范围内实现纳米影像，该范围由IR超脑和同步加速器源覆盖，但不受当前量子级联激光技术的影响。
Scattering-type scanning near-field optical microscopy (s-SNOM), and its derivate, Fourier transform infrared nanospectroscopy (nano-FTIR) are emerging techniques for infrared (IR) nanoimaging and spectroscopy with applications in diverse fields ranging from nanophotonics, chemical imaging and materials science. However, spectroscopic nanoimaging is still challenged by the limited acquisition rate of current nano-FTIR technology. Here we combine s-SNOM, nano-FTIR and synthetic optical holographic (SOH) to achieve infrared spectroscopic nanoimaging at unprecedented speed (8 spectroscopically resolved images in 20 min), which we demonstrate with a polymer composite sample. Beyond being fast, our method promises to enable nanoimaging in the long IR spectral range, which is covered by IR supercontinuum and synchrotron sources, but not by current quantum cascade laser technology.
