Numerical simulation of a new photon scanning tunneling microscope probe scanning imaging

Fei Bai; Guoshu Jian; Shifa Wu; Shi Pan

doi:10.1117/12.576464

9 February 2005 Numerical simulation of a new photon scanning tunneling microscope probe scanning imaging

Fei Bai, Guoshu Jian, Shifa Wu, Shi Pan

Proceedings Volume 5635, Nanophotonics, Nanostructure, and Nanometrology; (2005) https://doi.org/10.1117/12.576464
Event: Photonics Asia, 2004, Beijing, China

Abstract

Photon Scanning Tunneling Microscope (PSTM) is a near-field optical microscope that can measure local optical properties with high resolution beyond the diffraction limit and was widely applied in practices in recent years. The resolution of PSTM, which mainly depends on the shape of the taper tip, is an important issue to be discussed in the application. In this paper, the near-field distribution around a new PSTM probe is simulated by the method of 3-D Finite-Difference Time-Domain (FDTD). In this model, a nanometric metallic pyramid is attached at the apex of the metal-coated probe. Considering the interaction between the sample and the probe tip, the near-field distribution in a section at certain height is plotted as a function of the various sample positions. In order to optimize the optical property of this kind of optic fiber probe tip, the influence of the parameters of the taper tip can also be studied. To understand the effect of the probe film and the metal tip, the electromagnetic field distribution in the vicinities of the sample and the fiber probe during the third period is plotted. Thus, these simulated results offer references for the selection of the probe shape in experiments.

Citation Download Citation

Fei Bai, Guoshu Jian, Shifa Wu, and Shi Pan "Numerical simulation of a new photon scanning tunneling microscope probe scanning imaging", Proc. SPIE 5635, Nanophotonics, Nanostructure, and Nanometrology, (9 February 2005); https://doi.org/10.1117/12.576464

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available