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光学显微术的应用通常受到可见光波长赋予的标准分辨率极限的限制,近场扫描光学显微镜(NSOM)可以超越这一极限。与常规光学显微术相比,近场扫描光学显微术的空间分辨率获得极大提高。Guest等人报道了这一领域的重大进展,提出一种将近场扫描光学显微术的高空间分辨率与相干非线性光谱学的高光谱分辨率相结合的新技术。
The application of optical microscopy is often limited to the standard resolution limits imparted by visible wavelengths, and near-field scanning optical microscopy (NSOM) can exceed this limit. Compared with conventional optical microscopy, the spatial resolution of near-field scanning optical microscopy is greatly increased. Guest et al. Reported significant advances in this area and proposed a new technique that combines the high spatial resolution of near-field scanning optical microscopy with the hyperspectral resolution of coherent nonlinear spectroscopy.