与 Ag nano 粒子和玫瑰精 B 做的平面聚合物多模型波导被光谱学分析方法以及他们线方法制作并且调查。显示出的试验性的结果当激动时，那荧光改进在某个水平与 Ag nano 粒子集中由宽乐队波长发生。当激动时，在我们的实验的最大的改进...与 Ag nano 粒子和玫瑰精 B 做的平面聚合物多模型波导被光谱学分析方法以及他们线方法制作并且调查。显示出的试验性的结果当激动时，那荧光改进在某个水平与 Ag nano 粒子集中由宽乐队波长发生。当激动时，在我们的实验的最大的改进因素被 350nm 获得是大约 3.8。我们的学习可以在聚合物有潜在的应用光元素，例如聚合物波导激光和放大器。展开更多
The composite PMMA films containing Ag nanoparticles and rhodamine 6G are prepared. We investigate the fluorescence properties and nonlinear optical properties of R6G/PMMA films influenced by Ag nanoparticles. The flu...The composite PMMA films containing Ag nanoparticles and rhodamine 6G are prepared. We investigate the fluorescence properties and nonlinear optical properties of R6G/PMMA films influenced by Ag nanoparticles. The fluorescence enhancement factor is about 3.3. The corresponding nonlinear refractive index is measured to be -2.423 ×10^-8 esu using the Z-scan technique, which is much enhanced compared with the R6G/PMMA film. The results indicate that these enhancements are attributed to surface plasmon resonance of Ag nanoparticles.展开更多
A finite difference time domain simulation has been performed to analyse the optical transmission through a non-uniformly-spaced nanoslit array in silver film. The phase change of surface plasmons propagating on the s...A finite difference time domain simulation has been performed to analyse the optical transmission through a non-uniformly-spaced nanoslit array in silver film. The phase change of surface plasmons propagating on the silver film is used to modulate the initial phase of the output beam. The beam deflection and focusing function are designed, and the focal depth of the focusing metallic structure are mainly considered. It is found that the focal depth can be controlled by altering the effective width of this structure, i.e. the number of slits, when the relative spacing is fixed.展开更多
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 w...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.展开更多
We describe a simple and cost-effective holographic method for the fabrication of surface-relief zone plates. The zone plate is inscribed by interference between the first-and second-order diffracted waves from an ion...We describe a simple and cost-effective holographic method for the fabrication of surface-relief zone plates. The zone plate is inscribed by interference between the first-and second-order diffracted waves from an ion-etched Fresnel zone plate. The inscribed surface-relief zone plates are observed by atomic force microscope （AFM）. The formation process of the surface grating and the mass diffusion in azo polvmer are analvzed.展开更多
基金Supported by the National Natural Science Foundation of China under Grant No 10474093, the National Basic Research Programme of China under Grant No 2006CB302900, and the Special Funds for Major State Basic Research Programme of China under Grant No 2005CCA04200.
文摘与 Ag nano 粒子和玫瑰精 B 做的平面聚合物多模型波导被光谱学分析方法以及他们线方法制作并且调查。显示出的试验性的结果当激动时，那荧光改进在某个水平与 Ag nano 粒子集中由宽乐队波长发生。当激动时，在我们的实验的最大的改进因素被 350nm 获得是大约 3.8。我们的学习可以在聚合物有潜在的应用光元素，例如聚合物波导激光和放大器。
基金Supported by the National Basic Research Programme of China under Grant No 2006cb302905, the National Science Foundation of China under Grant No 10474093, the Knowledge Innovation Project of Chinese Academy of Sciences under Grant No KJCX3.Syw.H02, and the National High-Technology Research and Development Programme of China under Grant No 2007AA06Z420.
基金Supported by the National Natural Science Foundation of China No 10474093 and the National Basic Research Programme of China under Grant No 2006CB302905, and the Knowledge Innovation Project of Chinese Academy of Sciences under Grant No KJCX3.Syw.H02.
文摘The composite PMMA films containing Ag nanoparticles and rhodamine 6G are prepared. We investigate the fluorescence properties and nonlinear optical properties of R6G/PMMA films influenced by Ag nanoparticles. The fluorescence enhancement factor is about 3.3. The corresponding nonlinear refractive index is measured to be -2.423 ×10^-8 esu using the Z-scan technique, which is much enhanced compared with the R6G/PMMA film. The results indicate that these enhancements are attributed to surface plasmon resonance of Ag nanoparticles.
基金Supported by the National Science Foundation of China under Grant No 10474093, and the National Basic Research Programme of China under Grant No 2006cb302905.
文摘基于严密夫妇波浪分析算法，我们系统地分析了涂的金属性的栅栏 withsubwavelength 为 s 极化在非凡的光传播上切开的一部绝缘的电影的几何参数的效果照明。Resultsshow 支撑金属性的薄片状的栅栏的顶上的电磁的模式能强烈提高的波导的绝缘的电影发射度，传播山峰的位置被金属性的栅栏，厚度和绝缘的电影的折射索引的时期主要决定。这结构在优秀 polarizers 显示出潜在的应用 orpolarization 各向同性的设备在红外线光谱由适当地选择几何参数的范围。
基金Supported by the National Science Foundation of China under Grant Nos 10474093 and 90206002, and the Special Funds for Major State Basic Research Programme of China under Grant No 2005CCA04200.
文摘A finite difference time domain simulation has been performed to analyse the optical transmission through a non-uniformly-spaced nanoslit array in silver film. The phase change of surface plasmons propagating on the silver film is used to modulate the initial phase of the output beam. The beam deflection and focusing function are designed, and the focal depth of the focusing metallic structure are mainly considered. It is found that the focal depth can be controlled by altering the effective width of this structure, i.e. the number of slits, when the relative spacing is fixed.
基金This work was supported by the National Natural Science Foundation of China (No. 90206002) theNational and Development Program of China (No.2002AA313030) the Provincial Natural Science Foundation of Anhui (No. 03046204)
文摘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.
基金This work was supported by the National Natural Science Foundation of China under Grant No. 90206002.
文摘We describe a simple and cost-effective holographic method for the fabrication of surface-relief zone plates. The zone plate is inscribed by interference between the first-and second-order diffracted waves from an ion-etched Fresnel zone plate. The inscribed surface-relief zone plates are observed by atomic force microscope （AFM）. The formation process of the surface grating and the mass diffusion in azo polvmer are analvzed.
