Characterization of strong electromagnetic field confinement on gold nanostructures by apertureless scanning near-field optical microscopy

Abstract : We report on the detection of the optical near field of a 1D gold particle array by using an apertureless scanning near-field optical microscope. The strong near-field confinement measured above the grating proves unambiguously the near-field origin of the detected optical signal. Comparing the experiment with theory leads us to assign the optical near field to the first diffracted order of the grating, which is evanescent.
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https://hal-utt.archives-ouvertes.fr/hal-02296944
Contributor : Daniel Gavrysiak <>
Submitted on : Wednesday, September 25, 2019 - 4:08:17 PM
Last modification on : Thursday, September 26, 2019 - 1:26:07 AM

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Séverine Diziain, Johan Grand, Pierre-Michel Adam, Jean-Louis Bijeon, Pascal Royer. Characterization of strong electromagnetic field confinement on gold nanostructures by apertureless scanning near-field optical microscopy. Optics Letters, Optical Society of America, 2007, 32 (6), pp.620. ⟨10.1364/OL.32.000620⟩. ⟨hal-02296944⟩

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