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介绍了近场光学中的倏逝场的产生、数学表示以及它的一些特性，还述及了它的探测和近场光学显微镜的改进方向。
The generation of evanescent fields in near-field optics, their mathematical representations and some of their properties are introduced, along with the direction of improvement of its detection and near-field optical microscopy.