Coherent Terahertz Radiation from Multiple Electron Beams ...

Coherent Terahertz Radiation from Multiple Electron Beams Excitation within a Plasmonic Crystal-like structure

Coherent terahertz radiation from multiple electron beams excitation within a plasmonic crystal-like structure (a three-dimensional holes array) which is composed of multiple stacked layers with 3 × 3 subwavelength holes array has been proposed in this paper. It has been found that in the structure the electromagnetic fields in each hole can be coupled with […]

Congratulations on publishing “Fabrication methods of plas...

Congratulations on publishing “Fabrication methods of plasmonic and magnetoplasmonic crystals: a review”.

Congratulations on publishing “Fabrication methods of plasmonic and magnetoplasmonic crystals: a review” in The European Physical Journal Plus.   This paper is written by Foozieh Sohrabi under the direct supervision of  Dr Seyedeh Mehri Hamidi. Abstract. In recent years, plasmonic crystals have embraced a wide range of applications from medical to optoelectronic ones due to […]

Lasing in dark and bright modes of a finite-sized plasmoni...

Lasing in dark and bright modes of a finite-sized plasmonic lattice

Lasing at the nanometre scale promises strong light-matter interactions and ultrafast operation. Plasmonic resonances supported by metallic nanoparticles have extremely small mode volumes and high field enhancements, making them an ideal platform for studying nanoscale lasing. At visible frequencies, however, the applicability of plasmon resonances is limited due to strong ohmic and radiative losses. Intriguingly, […]

Nanoscale rotator

Nanoscale rotator

The rotation of the polarization of light by magneto-optical materials is well exploited by macroscale devices such as optical isolators, however, demonstrations in nano-optics or plasmonics are lacking due to issues such as dissipation and phasematching. Now, Curtis Firby and colleagues from Canada have proposed an integrated magnetoplasmonic Faraday rotator. They predict 99.4% polarization conversion over an 830-μm-long device using low-loss modes that can propagate over […]

Dual-band infrared perfect absorber for plasmonic sensor b...

Dual-band infrared perfect absorber for plasmonic sensor based on the electromagnetically induced reflection-like effect

Liu and his colleagues present a scheme for realizing a narrow-dual-band perfect absorber based on the plasmonic analogy of the electromagnetically induced reflection (EIR)-like effect. In their scheme, two short gold bars are excited strongly by incident plane wave serving as the bright mode. The middle gold bar is excited by two short gold bars. […]

Plasmon-Induced Transparency in a Surface Plasmon Polarito...

Plasmon-Induced Transparency in a Surface Plasmon Polariton Waveguide with a Right-Angled Slot and Rectangle Cavity

  The phenomenon of plasmon-induced transparency (PIT) is realized a in surface plasmon polariton waveguide at near-infrared frequencies. The right-angled slot and rectangle cavity placed inside one of the metallic claddings are respectively utilized to obtain bright and dark modes in a typical bright-dark mode waveguide. A PIT transmission spectrum of the waveguide is generated […]

Nonlinear Plasmonic Sensing with Nanographene

Nonlinear Plasmonic Sensing with Nanographene

  Plasmons provide excellent sensitivity to detect analyte molecules through their strong interaction with the dielectric environment. Plasmonic sensors based on noble metals are, however, limited by the spectral broadening of these excitations. Yu and his colleagues identify a new mechanism that reveals the presence of individual molecules through the radical changes that they produce in […]

Femtosecond plasmon interferometer

Femtosecond plasmon interferometer

            Fig. 1. Schematic of the tilted slit-groove interferometer: (a)top view,(b)excitation scheme.   Melentiev and his colleagues have realized a plasmonic interferometer formed by a nanoslit and a nanogroove in a single-crystal gold film. The possibility of measuring laser pulses of ultimately short durations, corresponding to two periods of a light […]

A smartphone based surface plasmon resonance imaging (SPRi...

    Guner and his colleagues demonstrate a surface plasmon resonance imaging platform integrated with a smartphone to be used in the field with high-throughput bio-detection. Inexpensive and disposable SPR substrates are produced by metal coating of commercial Blu-ray discs. A compact imaging apparatus is fabricated using a 3D printer which allows taking SPR measurements […]

Tunable Fano resonance and magneto-optical response in mag...

Tunable Fano resonance and magneto-optical response in magnetoplasmonic structure fabricated by pure ferromagnetic metals

The developments in nanophotonics demand more efficient and delicate control of light. It has recently been proposed to achieve this goal by combining plasmonics and magneto-optics in so-called magnetoplasmonic nanostructures. However, significant challenges still remain because of the difficulty in the design of spectrally tunable systems exhibiting novel plasmonic and magneto-optical responses simultaneously. Here Chen […]

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