Probing the symmetry of the potential of localized surface plasmon resonances with phase-shaped electron beams

The sign of the field in plasmonic excitations cannot be accessed by direct measurements. Here Guzzinatiet al. overcome this limitation by shaping the wavefunction of an electron beam to match the symmetry of the plasmon’s charge symmetry, offering selective detection of specific plasmon modes.

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Autores principales: Giulio Guzzinati, Armand Béché, Hugo Lourenço-Martins, Jérôme Martin, Mathieu Kociak, Jo Verbeeck
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2017
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Acceso en línea:https://doaj.org/article/a8a3c440b40842c99f40464598a0cbaf
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