Approach of FDTD algorithm for PSTM

Jingzhi Wang; Guoshu Jian; Xiaoqiu Wang; Shifa Wu; Shi Pan

doi:10.1117/12.481727

5 September 2002 Approach of FDTD algorithm for PSTM

Jingzhi Wang, Guoshu Jian, Xiaoqiu Wang, Shifa Wu, Shi Pan

Author Affiliations +

Proceedings Volume 4923, Nano-Optics and Nano-Structures; (2002) https://doi.org/10.1117/12.481727
Event: Photonics Asia, 2002, Shanghai, China

Abstract

It is important to analyze the images obtained by photon scanning tunneling microscope (PSTM). Recently some theories have been developed including finite-difference time-domain (FDTD) method applied in near field optics. In this article wc extend a simple FDTD method (equivalent incident wave method) to PSTM system, which has been widely used to detect objects buried underground in geophysics. In PSTM system lighting wave is evanescent wave, that is the equivalent incident wave exciting the samples and probe over the interface. Numerical simulations show that the results ofthis method are in agreement with the results ofthe moment method and perturbation theory.

Citation Download Citation

Jingzhi Wang, Jingzhi Wang, Guoshu Jian, Guoshu Jian, Xiaoqiu Wang, Xiaoqiu Wang, Shifa Wu, Shifa Wu, Shi Pan, Shi Pan, "Approach of FDTD algorithm for PSTM", Proc. SPIE 4923, Nano-Optics and Nano-Structures, (5 September 2002); doi: 10.1117/12.481727; https://doi.org/10.1117/12.481727

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