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In this article, we reported near-field research on azobenzene polymer liquid crystal films using scanning near-field optical microscopy (SNOM). Optical writing and subsequently topographic reading of the patterns with subwavelength resolution were carried out in our experiments. Nanometer scale dots and lines were successfully fabricated on the films and the smallest dot diameter is about 120 nm. The width of the line fabricated is about 250 nm. This method is also a choice for nanolithography. The mechanism of the surface deformation on the polymer films was briefly analyzed from the viewpoint of gradient force in the optical near field. The intensity distribution of the electric field near the tip aperture was numerically simulated using finite-difference time-domain (FDTD) method and the numerical simulation results were consistent with the experimental results. 相似文献
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用二维光栅实现FPS互联网络 总被引:1,自引:0,他引:1
提出了一种应用二维光栅和简单的成像系统实现folded perfect shuffle(FPS)的新方法,该方法具有简单,易行的优点,实验证明,其效果良好. 相似文献
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用棱镜实现高效率的完全混洗互连网络 总被引:10,自引:2,他引:8
提出了用棱镜的普通光学系统实现二维的完全混洗互,连网络的新方法,方法简单,可行,可能有效地利用光能,因而具有实用意义。 相似文献
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Fluorescence Enhancement of a Polymer Planar Waveguide Doped with Rhodamine B and Ag Nanoparticles
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Planar polymer multi-model waveguides doped with Ag nano-particles and rhodamine B are fabricated and investigated by the spectroscopy analysis method as well as the M-line method. Experimental results shown that fluorescence enhancement occurs when excited by a wide band wavelength with Ag nano-particle concentration at a certain level. The maximum enhancement factor in our experiment is obtained to be about 3.8 when excited by 350 nm. Our study may have potential applications in polymers optical elements, such as polymer waveguide lasers and amplifiers. 相似文献
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