Metal oxide nanostructures hold great potential for photovoltaic (PV), photoelectrochemical (PEC), and photocatalytic applications. Whereas thin films of various materials of both nanoparticle and nanorod morphologies have been widely investigated, there have been few inquiries into nanodisk structures. Here, we report the synthesis of ultrathin WO3 nanodisks using a wet chemical route with pol...

Daria A. Smirnova,1 Roman E. Noskov,2,3 Lev A. Smirnov,4,5 and Yuri S. Kivshar1,2 1Nonlinear Physics Center, Australian National University, Canberra ACT 2601, Australia 2ITMO University, St. Petersburg 197101, Russia 3Max Planck Institute for the Science of Light, Erlangen D-91058, Germany 4Institute of Applied Physics of the Russian Academy of Science, Nizhny Novgorod 603950, Russia 5Lobachev...

Stacked porous octahedral tin phosphate Sn(2)P(2)O(7) nanodisks, with a thickness and a width of 20 nm and 200 nm, respectively, were prepared from quenching hydrothermally prepared (SnHPO(4))(2).H(2)O at 600 degrees C. The first discharge capacity was 600 mA h g(-1) while the capacity retention, even after 220 cycles, was 93%.

Toroidal multipoles, together with electric and magnetic provide a complete description of electromagnetic responses matter. The fundamental toroidal resonance has been extensively achieved investigated in nanooptics, showing great ability to increase light absorption force. In this paper, we obtained plasmonic dipole core-shell (dielectric-core/gold-shell) nanodisk demonstrated an enhanced sec...

A single metallic nanodisk is the simplest plasmonic nanostructure, but it robust enough to generate a Fano resonance in forward and backward scattering spectra by increment of height symmetric asymmetric dielectric environment. Thanks phase retardation effect, non-uniform distribution electric field along aluminum (Al) generates out-of-plane higher-order modes, which interfere with dipolar mod...

We morph a silver nanodisk into a nanotriangle by producing a series of nanoparticles with electron beam lithography. Using electron energy loss spectroscopy (EELS), we map out the plasmonic eigenmodes and trace the evolution of edge and film modes during morphing. Our results suggest that disk modes, characterized by angular order, can serve as a suitable basis for other nanoparticle geometrie...

We study the resonant modes of nanoscale disk resonators sustaining metal-insulator-metal (MIM) plasmons and demonstrate the versatility of these cavities to achieve ultrasmall cavity mode volume. Ag/SiO2/Ag MIM structures were made by thin-film deposition and focused ion beam milling with cavity diameters that ranged from d = 65-2000 nm. High-resolution two-dimensional cavity-mode field distri...

Superscattering was theoretically proposed to significantly enhance the scattering cross-section of a subwavelength nanostructure, far exceeding its single-resonance limit by employing resonances of multiple plasmonic modes. By numerical simulation, we design a subwavelength nanodisk as a simple candidate to achieve superscattering. Due to the phase retardation, the subradiant mode can be excit...

We propose and analyze a multifunctional THz device which can operate as tunable switch filter. The consists of circular graphene nanodisk coupled to two nanoribbons oriented at $90^\circ$ each other. elements are placed on dielectric substrate. is magnetized by DC magnetic field normal its plane. physical principle the based propagation surface plasmon-polariton waves in excitation dipole mode...

This paper reports on the mechanical tuning of optical resonances of a flexible plasmonic crystal. The device is structured with a square lattice nanopost array standing out of an elastomer substrate and coated with a gold thin film. The gold nanodisks residing on top of the nanoposts support a surface plasmon polariton (SPP) Bloch wave mode at the gold-air interface. By applying a strain along...