Power spectral analysis for evaluating optical near-field images of 20 nm gold particles

Uma Maheswari R.

doi:10.1117/12.2298926

1 September 1996 Power spectral analysis for evaluating optical near-field images of 20 nm gold particles

Uma Maheswari R.

Proceedings Volume 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology; 277818 (1996) https://doi.org/10.1117/12.2298926
Event: 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 1996, Taejon, Korea, Republic of

Abstract

In spite of the very wide applications of a near-field optical microscope (NOM) in various fields such as observation of biological specimens, optical storage etc. [1,2], a systematic analysis of the images with respect to resolution and contrast is lacking. In this work using 20 nm gold particles (calibrated by electron microscope) fixed on a glass plate as the observation object, we have evaluated the transfer function of NOM.

Citation Download Citation

Uma Maheswari R. "Power spectral analysis for evaluating optical near-field images of 20 nm gold particles", Proc. SPIE 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 277818 (1 September 1996); https://doi.org/10.1117/12.2298926

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