Approaches to mid-infrared, super-resolution imaging and spectroscopy
Approaches to mid-infrared, super-resolution imaging and spectroscopy
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DOI：
10.1039/c9cp05815j
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发表时间：
2020-02-28
影响因子：
3.3
通讯作者：
Kuno, Masaru
中科院分区：
文献类型：
--
作者：
Pavlovetc, Ilia M.;Aleshire, Kyle;Kuno, Masaru
这一观点强调了超分辨率，中红外成像和光谱学的最新进展。它提供了一个概述了不同的近场显微镜技术开发，以解决在中红外光谱的“指纹”区域与高空间分辨率的化学成像标本的问题。我们专注于最近发展的远场光学技术，称为红外光热外差成像（IR-PHI），并详细讨论了该技术。它的实际实施中所使用的设备，光学几何形状，和底层的对比机制进行了描述。综述了IR-PHI在生物科学和材料科学领域取得的重大进展。展望的结论与强大的和容易获得的高空间分辨率，中红外成像和光谱技术的未来前景。
This perspective highlights recent advances in super-resolution, mid-infrared imaging and spectroscopy. It provides an overview of the different near field microscopy techniques developed to address the problem of chemically imaging specimens in the mid-infrared "fingerprint" region of the spectrum with high spatial resolution. We focus on a recently developed far-field optical technique, called infrared photothermal heterodyne imaging (IR-PHI), and discusses the technique in detail. Its practical implementation in terms of equipment used, optical geometries employed, and underlying contrast mechanism are described. Milestones where IR-PHI has led to notable advances in bioscience and materials science are summarized. The perspective concludes with a future outlook for robust and readily accessible high spatial resolution, mid-infrared imaging and spectroscopy techniques.