Near-Field Optical Scanning Probe Based on Surface Plasmon Resonance

Author

Dong, Kexiu ; Wen, Songling ; Yang, Shurong ; Shi, Jianping

Author_Institution

Dept. of Phys. & Electron. Technol., Anhui Normal Univ., Wuhu, China

fYear

2009

fDate

14-16 Aug. 2009

Firstpage

1

Lastpage

3

Abstract

The paper studies a new near-field optical scanning probe based on symmetric dipole SPP resonance structure, and presents the physical model and fundamental principles. lt analyzes the scanning detection results of the probe to 100 nm gold film square hole by finite-difference time-domain (FDTD) method. The study shows that its resolution and sensitivity are greatly improved, compared to the ordinary optical fiber probe under the same condition.The study also shows that the closer to the sample of a probe, the higher resolution and sensitivity.

Keywords

finite difference time-domain analysis; gold; near-field scanning optical microscopy; optical fibres; surface plasmon resonance; Au; SNOM; finite-difference time-domain method; gold film square hole; near-field optical scanning probe; ordinary optical fiber probe; scanning near-field optical microscope; size 100 nm; surface plasmon resonance; symmetric dipole SPP resonance structure; Biomedical optical imaging; Optical fibers; Optical films; Optical microscopy; Optical sensors; Optical surface waves; Plasmons; Probes; Resonance; Surface waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics and Optoelectronics, 2009. SOPO 2009. Symposium on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-4412-0

Type

conf

DOI

10.1109/SOPO.2009.5230073

Filename

5230073