基于小波函数的时域多分辨分析在近场光学中的应用  

Application of W-MRTD in near-field optics

作　　者：时文远[1] 简国树[1] 潘石[1] 

机构地区：[1]大连理工大学物理与光电工程学院,辽宁大连116024

出　　处：《电子显微学报》2009年第2期107-110,共4页Journal of Chinese Electron Microscopy Society

摘　　要：实现了基于双正交的Cohen Daubechies Feauveau(CDF)小波的时域多分辨分析(MRTD),并将其用于近场电磁散射模拟中。结果表明,在相同的网格划分下基于小波的MRTD比基于尺度函数的MRTD具有更高的数值准确性。最后,对带纳米金属棒孔径光纤探针成像进行了数值模拟,结果显示其成像效果优于普通孔径探针。A method of mulliresolution time domain, which is based on biorthogonal Cohen-Daubechies-Feauveau （CDF） wavelet families （W- MRTD）, is applied in near field approximation. The results prove the computational accuracy of the method over the traditional scaling-function based multiresolution time-domain （S-MRTD） with uniform space gridding. Finally, the image of photo scanning tunnel microscope （PSTM）, using fiber probe coated by metal with a nano-rod at the edge of the aperture, is analyzed. The results show that a better image can be obtained by such probe than the common ones.

关 键 词：时域多分辨分析 CDF小波 近场光学 光子扫描显微镜 

分 类 号：TH742[机械工程—光学工程]