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Proceedings Paper

Optimization of the enhanced evanescent wave for near-field microscopy
Author(s): Pu Chun Ke; Jakub Szajman; Xiasong Gan; Min Gu
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Paper Abstract

Near-field microscopy usually uses an evanescent wave as an illumination source on a sample. An enhanced evanescent wave can be obtained at the surface of a multilayer thin-film coating system due to the optical tunneling effect. It can improve the illumination power by several orders of magnitude in near-field microscopy. The enhancement of an evanescent wave is related to the thickness and refractive indices of the thin film layers as well as the incident angle and wavelength of the illumination source. In this paper, optimization of these parameters is studied in detail under resonance conditions, and some experimental results also are presented.

Paper Details

Date Published: 10 April 1997
PDF: 8 pages
Proc. SPIE 2984, Three-Dimensional Microscopy: Image Acquisition and Processing IV, (10 April 1997); doi: 10.1117/12.271276
Show Author Affiliations
Pu Chun Ke, Victoria Univ. of Technology (Australia)
Jakub Szajman, Victoria Univ. of Technology (Australia)
Xiasong Gan, Victoria Univ. of Technology (Australia)
Min Gu, Victoria Univ. of Technology (Australia)

Published in SPIE Proceedings Vol. 2984:
Three-Dimensional Microscopy: Image Acquisition and Processing IV
Carol J. Cogswell; Jose-Angel Conchello; Tony Wilson, Editor(s)

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