Convenient near-field optical measurement and analysis of polystyrene spheres

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)129-132
Journal / PublicationVacuum
Volume81
Issue number1
Publication statusPublished - 16 Sep 2006
Externally publishedYes

Abstract

The modification of a commercial tapping mode atomic force microscope (AFM) into a transmission mode near-field scanning optical microscope (NSOM) is presented and polystyrene spheres in the diameter of 100 nm are used in this experiment. The detection of near-field signals is based on photodiodes with lock-in technique, and resolutions of topography and near-field signals obtained are about 10 and 20 nm, respectively. Furthermore, it is discovered that the computer-simulated near-field energy distribution profile, obtained by scanning over polystyrene spheres under illumination mode, falls within 5% range as compared with experimental values. The near-field absorption coefficient can be determined by this way. This will be a useful theoretical model to analyze the near-field transmission effect from others. © 2006 Elsevier Ltd. All rights reserved.

Research Area(s)

  • Atomic force microscope (AFM), Near-field absorption coefficient, Near-field scanning optical microscope (NSOM), Polystyrene spheres

Bibliographic Note

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Citation Format(s)

Convenient near-field optical measurement and analysis of polystyrene spheres. / Chen, Sy-Hann; Hsiung, Hsu Chou; Su, Wei-Bin; Tsai, Din Ping.

In: Vacuum, Vol. 81, No. 1, 16.09.2006, p. 129-132.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review