Probing the symmetry of the potential of localized surface plasmon resonances with phase-shaped electron beams
oleh: Giulio Guzzinati, Armand Béché, Hugo Lourenço-Martins, Jérôme Martin, Mathieu Kociak, Jo Verbeeck
| Format: | Article |
|---|---|
| Diterbitkan: | Nature Portfolio 2017-04-01 |
Deskripsi
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.