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首页> 外文期刊>Optics Letters >Scanning near-field optical images of ordered polystyrene particle layers in transmission and luminescence excitation modes
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Scanning near-field optical images of ordered polystyrene particle layers in transmission and luminescence excitation modes

机译：在透射和发光激发模式下扫描有序聚苯乙烯颗粒层的近场光学图像

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摘要

Scanning near-field optical images of hexagonally close-packed layers of polystyrene spherical particles with a diameter of 1.0 mu m have been investigated. The layers were composed of particles that were doped either totally or partially with an organic fluorescent dye. Observations were made in the transmission and luminescence excitation modes with a scanning near-field optical microscope (SNOM) with a spatial resolution shorter than the wavelength of light. The patterns observed in the SNOM images are significantly dependent on the microstructures of layers, that is, the layers are either single or double layered, and the particles are either totally or partially doped. These results are discussed in terms of specific modes of electromagnetic waves transmitting across and along the layers after the local excitation at the tip end of the scanning microprobe. (C) 1997 Optical Society of America.
机译：已经研究了直径为1.0μm的聚苯乙烯球形颗粒的六方密堆积层的扫描近场光学图像。这些层由全部或部分掺杂有有机荧光染料的颗粒组成。使用扫描近场光学显微镜（SNOM）在透射和发光激发模式下进行了观察，其空间分辨率短于光的波长。在SNOM图像中观察到的图案在很大程度上取决于层的微观结构，即，层是单层还是双层，颗粒全部或部分掺杂。这些结果是根据在扫描微探针尖端处的局部激发之后跨层并沿着层传输的电磁波的特定模式进行讨论的。 （C）1997年美国眼镜学会。

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