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Broadband Surface Plasmon Lasing in One-dimensional Metall...

Broadband Surface Plasmon Lasing in One-dimensional Metallic Gratings on Semiconductor

They report surface plasmon (SP) lasing in metal/semiconductor nanostructures, where one-dimensional periodic silver slit gratings are placed on top of an InGaAsP layer. The SP nature of the lasing is confirmed from the emission wavelength governed by the grating period, polarization analysis, spatial coherence, and comparison with the linear transmission. The excellent performance of the […]

Congratulations on the acceptance of the paper “Localized ...

Congratulations on the acceptance of the paper “Localized to Propagating Surface Plasmon Resonance Transition in Ni-Au Magneto-Plasmonic Gratings”

The paper entitled “Localized to Propagating Surface Plasmon Resonance Transition in Ni-Au Magneto-Plasmonic Gratings” is written by Morteza Alizadeh Oskuie under the direct supervision of  Dr Seyedeh Mehri Hamidi and it is accepted in the journal of Superconductivity and novel magnetism.  The abstract is as follows: Magneto-plasmonic structures, which are the best candidates for different applications, have been […]

Strong magneto-optical response of non-magnetic organic ma...

Strong magneto-optical response of non-magnetic organic materials coupled to plasmonic nanostructures

Plasmonic nanoparticles (PNPs) can significantly modify the optical properties of nearby organic molecules and thus present an attractive opportunity for sensing applications. However, the utilization of PNPs in conventional absorption, fluorescence, or Raman spectroscopy techniques is often ineffective due to strong absorption background and light scattering, particularly in the case of turbid solutions, cell suspensions, […]

Manipulating coherent plasmon-exciton interaction in singl...

Manipulating coherent plasmon-exciton interaction in single silver nanorod on monolayer WSe2

Strong coupling between plasmons and excitons in nanocavities can result in the formation of hybrid plexcitonic states. Understanding the dispersion relation of plexcitons is important both for fundamental quantum science and for applications including optoelectronics and nonlinear optics devices. The conventional approach, based on statistics over different nanocavities suffers from large inhomogeneities from the samples, owing to the […]

Deep learning with coherent nanophotonic circuits

Deep learning with coherent nanophotonic circuits

Artificial neural networks are computational network models inspired by signal processing in the brain. These models have dramatically improved performance for many machine-learning tasks, including speech and image recognition. However, today’s computing hardware is inefficient at implementing neural networks, in large part because much of it was designed for von Neumann computing schemes. Significant effort […]

Vertically magnetic-controlled THz modulator based on 2-Dm...

Vertically magnetic-controlled THz modulator based on 2-Dmagnetized plasma photonic crystal

A novel magnetized plasma modulator for THz range is proposed. The structure is based on 2-D photoniccrystal (PC) constructed by triangular lattice of Si rods in air with line defects and an InSb rod as apoint defect. Based on the magneto-optic effect, the resonant frequency can be tuned by the externalmagnetic field and the radius […]

Silicon-gold core-shell nanowire array for an optically an...

Silicon-gold core-shell nanowire array for an optically and electrically characterized refractive index sensor based on plasmonic resonance and Schottky junction

This work reports the plasmonically enhanced refractive index sensor consisting of silicon nanowire array (Si-NWA) coated by a conformal gold (Au) nanoshell. Compared to the pure Si or Au NWA system, the Si-Au core-shell setup leads to substantially enhanced optical in-coupling to excite strong surface plasmon resonance (SPR) for highly sensitive sensors. Results indicate that […]

Cavity-enhanced continuous graphene plasmonic resonator fo...

Cavity-enhanced continuous graphene plasmonic resonator for infrared sensing

They  propose a cavity-enhanced resonator based on graphene surface plasmonics for infrared sensing. In such a resonator, a continuous and non-patterned monolayer graphene serves as the sensing medium by exciting surface plasmons on its surface, which can preserve the excellent electronic property of graphene and avoid the interaction between biomolecules and dielectric substrate. To improve its […]

Recent advances in planar optics: from plasmonic to dielec...

Recent advances in planar optics: from plasmonic to dielectric metasurfaces

This article reviews recent progress leading to the realization of planar optical components made of a single layer of phase shifting nanostructures. After introducing the principles of planar optics and discussing earlier works on subwavelength diffractive optics,they introduce a classification of metasurfaces based on their different phase mechanisms and profiles and a comparison between plasmonic and […]

Plasmonic Sensing of Oncoproteins without Resonance Shift ...

A sensor design and sensing method based on plasmonic–photonic interactions that occur when a nanocavity array is embedded in a 3D tapered nanocup plasmonic substrate are reported. This device enables highly sensitive detection of refractive index changes based on changes to the transmission peak intensity without shift in the resonance wavelength. Unlike conventional plasmonic sensors, […]

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