Results 111 to 120 of about 1,322 (144)

AFM reconstruction of complex-shaped chiral plasmonic nanostructures

Ultramicroscopy, 2017
A significant part of the optical metamaterial phenomena has the plasmonic nature and their investigation requires very accurate knowledge of the fabricated structures shape with a focus on the periodical features. We describe a consistent approach to the shape reconstruction of the plasmonic nanostructures.
A V, Kondratov, O Y, Rogov, R V, Gainutdinov   +2 more
openaire   +2 more sources

Plasmonic Core–Satellites Nanostructures with High Chirality and Bioproperty

The Journal of Physical Chemistry Letters, 2013
In this Letter, gold nanorods (Au NRs) and gold nanoparticles (Au NPs) were assembled into core-satellites (Au NR-NPs) nanostructures using DNA as the linkers. Circular dichroism (CD) measurements of the nanoassemblies displayed two plasmonic CD (PCD) peaks in the vicinity of the surface plasmon resonance (SPR).
Liguang, Xu, Changlong, Hao, Honghong, Yin, Liqiang, Liu, Wei, Ma, Libing, Wang, Hua, Kuang, Chuanlai, Xu   +7 more
openaire   +2 more sources

(Invited) Plasmonic Fabrication of Chiral and Magneto-Chiral Nanostructures

ECS Meeting Abstracts
Chiral and magneto-chiral plasmonic nanostructures attract attention because they have various potential applications including catalysts, chemical sensors, and optical and optoelectronic materials and devices. In many cases, those nanostructures are fabricated by lithographic techniques.
Tetsu Tatsuma, Takuya Ishida
openaire   +1 more source

Biomolecule‐Enabled Chiral Assembly of Plasmonic Nanostructures

ChemNanoMat, 2017
AbstractThe field of chiral plasmonics has received increasing attention in various areas of nanoscience due to the unprecedented light‐matter interactions and promising optical applications. Chiral arrangement of nanoparticles is one of the strategies employed for fabrication of chiral nanostructures.
Hye‐Eun Lee, Hyo‐Yong Ahn, Jaehun Lee, Ki Tae Nam   +3 more
openaire   +1 more source

Theory of Chiral Plasmonic Nanostructures Comprising Metal Nanocrystals and Chiral Molecular Media

ChemPhysChem, 2012
AbstractPlasmonic nanocrystals strongly interact with chiral molecular shells through electric and magnetic fields and in this way acquire new chiro‐optical properties. Transfer of chirality from biomolecules to the plasmonic resonances is a collective phenomenon and strongly depends on the geometry of nanostructure.
Alexander O, Govorov, Zhiyuan, Fan
openaire   +2 more sources

Circular dichroism from single plasmonic nanostructures with extrinsic chirality

Nanoscale, 2014
Circular dichroism (CD) studies on single nanostructures can yield novel insights into chiroptical physics that are not available from traditional ensemble-based measurements, yet they are challenging because of their weak signals. By introducing an oblique excitation beam, we demonstrate the observation and spectroscopic analysis of a prominent ...
Xuxing, Lu, Jian, Wu, Qiannan, Zhu, Junwei, Zhao, Qiangbin, Wang, Li, Zhan, Weihai, Ni   +6 more
openaire   +2 more sources

Chiral plasmonic nanostructures: experimental and numerical tools

SPIE Proceedings, 2013
A combination of electron- and ion-beam lithographies has been applied to fabricate patterns of plasmonic nanoparticles having tailored optical functions: they create hot-spots at predefined locations on the nanoparticle at specific wavelengths and polarizations of the incident light field. Direct inscribing of complex chiral patterns into uniform nano-
Gervinskas Gediminas, ROSA, Lorenzo, Brasselet Etienne, Juodkazis Saulius   +3 more
openaire   +1 more source

Gap plasmons inducing strong plasmonic chirality in planar metallic nanostructures

Journal of Physics D: Applied Physics, 2020
Abstract In this paper, an observation of chiral gap plasmons that induce strong optical chirality, spectroscopic circular dichroism (CD), and near-field enhancement in a planar metallic nanostructure is reported. The resulting chiral nanostructure consists of artificial gold nanoscale elements which are periodically fabricated on a ...
openaire   +1 more source

Chiral plasmonic nanostructures: Twisted by DNA.

Nature materials, 2014
Peer ...
openaire   +2 more sources

Chiral plasmonic nanostructures: Experimental and numerical tools

A combination of electron- and ion-beam lithographies has been applied to fabricate patterns of plasmonic nanoparticles having tailored optical functions: they create hot-spots at predefined locations on the nanoparticle at specific wavelengths and polarizations of the incident light field. Direct inscribing of complex chiral patterns into uniform nano-
Gervinskas, Gediminas, Rosa, Lorenzo, Brasselet, Etienne, Juodkazis, Saulius, von Freymann, Georg, Schoenfeld, Winston V., Rumpf, Raymond C.   +6 more
openaire   +1 more source