自从提出了近场光学技术以来，由于近场扫描光学显微镜（NSOM）系统的复杂性而使得近扬的引入和利用变得困难。
The introduction of optical near field is oriented to overcome this disadvantage, yet the complexity of NSOM system makes it difficult to induct and utilize the near field.
主要利用扫描近场光学显微镜(SNOM)技术和表面等离体子共振现象技术相结合，来研究金膜表面等离体子共振。
The SPR on gold film is studied with combination of scanning near-field optical microscope (SNOM) and SPR technique.
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