Wide-field imaging through dielectric microspheres has emerged in recent years as a simple and effective approach for generating super-resolution images at visible wavelengths. We present, to our knowledge, the first demonstration that dielectric microspheres can be used in a wide-field infrared (IR) microscope to enhance the far field resolution. We have observed a substantial improvement in resolution and magnification when images are collected through polystyrene microspheres. In addition, we demonstrate that spectroscopic imaging with a pulse-shaper based femtosecond mid-IR laser system is possible through the dielectric microspheres, which is a promising first step toward applying this technique to ultrafast IR imaging methods such as pump–probe and 2DIR microscopy.

中文翻译：

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使用介电微球的广域红外成像和时域光谱中的分辨率增强。

近年来，通过电介质微球进行的宽视场成像已成为一种简单有效的方法，可以在可见光波长下生成超分辨率图像。据我们所知，我们首次展示了介电微球可用于宽视场红外（IR）显微镜，以提高远场分辨率。当通过聚苯乙烯微球收集图像时，我们已经观察到分辨率和放大倍数的显着改善。此外，我们证明了通过介电微球通过基于脉冲整形的飞秒中红外激光系统进行光谱成像是可能的，这是将该技术应用于超快红外成像方法（如泵浦探针和2DIR显微镜）的有希望的第一步。