Optical near-field mapping of plasmonic nanostructures prepared by nanosphere lithography

• Gitanjali Kolhatkar,
• Alexandre Merlen,
• Jiawei Zhang,
• Chahinez Dab,
• Gregory Q. Wallace,
• François Lagugné-Labarthet and
• Andreas Ruediger

Beilstein J. Nanotechnol. 2018, 9, 1536–1543, doi:10.3762/bjnano.9.144

• is focused onto a nano-antenna consisting of a noble metal tip, whose role is to enhance and to confine the near-field and to transform it into a measurable far-field signal. An electromagnetic near-field amplification is generated in the process. The main challenge is to fabricate highly efficient

Localized surface plasmon resonances in nanostructures to enhance nonlinear vibrational spectroscopies: towards an astonishing molecular sensitivity

• Dan Lis and
• Francesca Cecchet

Beilstein J. Nanotechnol. 2014, 5, 2275–2292, doi:10.3762/bjnano.5.237

Controlling the near-field excitation of nano-antennas with phase-change materials

• Tsung Sheng Kao,
• Yi Guo Chen and
• Ming Hui Hong

Beilstein J. Nanotechnol. 2013, 4, 632–637, doi:10.3762/bjnano.4.70

• the landscape of the plasmonic system at a step resolution of λ/20. These findings introduce a new approach for nano-circuitry, bio-assay addressing and imaging applications. Keywords: light localization; nano-antenna; near field; phase-change materials; plasmon coupling; Introduction With the rapid

• one at a corresponding gap g of 12, 14, 14, 16, and 20 nm, respectively. These different choices in the lengths and gaps of antennas are made in order to have a comparable field enhancement on one excited nano-antenna, whereas the others remain completely unexcited. The width w and thickness h of all

• incident onto the array with a polarization direction parallel to the antennas in the y direction, and the illumination wavelength is 2.16 μm. When the underneath GST thin film is in the amorphous state, only the longest nano-antenna is excited, generating a subwavelength energy hot-spot at the gap centre

Near-field effects and energy transfer in hybrid metal-oxide nanostructures

• Ulrich Herr,
• Balati Kuerbanjiang,
• Cahit Benel,
• Giorgos Papageorgiou,
• Manuel Goncalves,
• Johannes Boneberg,
• Paul Leiderer,
• Paul Ziemann,
• Peter Marek and
• Horst Hahn

Beilstein J. Nanotechnol. 2013, 4, 306–317, doi:10.3762/bjnano.4.34

• 3 μm diameter), covered with TiO2:Eu nanophosphors. Confocal microscopy images of the Ag nano-antenna structures (produced using 3 μm diameter colloid spheres) covered with TiO2:Eu nanophosphors under illumination with 532 nm laser light. In (a) intensity in the wavelength region 530–535 nm has been