標題: Near-field spectroscopic properties of complementary gold nanostructures: applicability of Babinet's principle in the optical region
作者: Mizobata, Hidetoshi
Ueno, Kosei
Misawa, Hiroaki
Okamoto, Hiromi
Imura, Kohei
應用化學系
應用化學系分子科學碩博班
Department of Applied Chemistry
Institute of Molecular science
公開日期: 6-三月-2017
摘要: We examine the far-field and near-field properties of complementary screens made of nanostructured gold thin films, a rectangular nanowire and a nanovoid, using an aperture-type scanning near-field optical microscope and electromagnetic field calculations, and discuss the applicability of Babinet's principle in the optical region. The far-field transmission spectra of the complementary screens are considerably different from each other. On the other hand, genuine near-field extinction spectra exhibit nearly complementary characteristics. The spatial features of the observed near-field images for the complementary screens show little correlation. We have found from the Fourier analysis of the simulated images that high spatial-frequency components of the electromagnetic fields show mutual spatial correlation. These results suggest that Babinet's principle is applicable to the high spatial-frequency components of electromagnetic fields for the complementary screens. (C) 2017 Optical Society of America
URI: http://dx.doi.org/10.1364/OE.25.005279
http://hdl.handle.net/11536/144976
ISSN: 1094-4087
DOI: 10.1364/OE.25.005279
期刊: OPTICS EXPRESS
Volume: 25
Issue: 5
起始頁: 5279
結束頁: 5289
顯示於類別:期刊論文


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