Light scattering and surface plasmons on small spherical particles

  title={Light scattering and surface plasmons on small spherical particles},
  author={Xiaofeng Fan and Weitao Zheng and David J. Singh},
  journal={Light: Science \& Applications},
  pages={e179 - e179}
Light scattering by small particles has a long and interesting history in physics. Nonetheless, it continues to surprise with new insights and applications. This includes new discoveries, such as novel plasmonic effects, as well as exciting theoretical and experimental developments such as optical trapping, anomalous light scattering, optical tweezers, nanospasers, and novel aspects and realizations of Fano resonances. These have led to important new applications, including several ones in the… 

High Spatial Resolution Mapping of Localized Surface Plasmon Resonances in Single Gallium Nanoparticles.

The optical response of individual Ga nanoparticles (NPs) by means of EELS measurements is analyzed, in order to spread the understanding of the plasmonic response of Ga NPs.

Quantum plasmonics for next-generation optical and sensing technologies

Classical plasmonics has mostly focused on structures characterized by large dimension, for which the quantummechanical effects have nearly no impact. However, recent advances in technology,

Modified Absorption and Emission Properties Leading to Intriguing Applications in Plasmonic–Excitonic Nanostructures

Hybrid nanostructures composed of metal and semiconducting nanocrystals have drawn tremendous attention owing to their extraordinary absorption and emission properties. The energy transfer in

Light trapping in mesoporous solar cells with plasmonic nanostructures

Plasmon resonances in metal nanostructures have been extensively harnessed for light trapping in mesoporous solar cells (MSCs), including dye-sensitized solar cells (DSSCs) and recently in perovskite

Spectroscopy and Biosensing with Optically Resonant Dielectric Nanostructures

Resonant dielectric nanoparticles made of materials with large positive dielectric permittivity, such as Si, GaP, GaAs, have become a powerful platform for modern light science, enabling various

Design and Analysis of Surface Plasmon Enhanced Electric Field in Al, Ag and Au Nanoparticle Dimers for UV-Visible Plasmonics

It is now well established that, due to excitation of localized surface plasmon resonances in plasmonic nanosystems, the electric field from an external irradiation source is greatly amplified in

Refractive Index Sensing Using Visible Electromagnetic Resonances of Supported Cu2O Particles.

The first experimental demonstration of the use of supported high-n dielectric nano/microparticle ensembles as refractive index sensing platforms, using cuprous oxide as a model high- n material is presented.

Plasmonic Waveguides for Sub-wavelength Light Confinement

Modern electronic devices and circuits for information processing are rapidly approaching their ultimate speed and bandwidth limitations, which is an increasingly serious problem that impedes their

Electrical and optical performance of plasmonic silicon solar cells based on light scattering of silver and indium nanoparticles in matrix-combination.

Optical reflectance and external quantum efficiency (EQE) measurements demonstrate that the light scattering of Ag-NPs at short wavelengths can be improved by surrounding them with In-Nps, which leads to high EQE band matching in the high energy band of the AM1.5G solar energy spectrum.



Quantum plasmon resonances of individual metallic nanoparticles

This work investigates the plasmon resonances of individual ligand-free silver nanoparticles using aberration-corrected transmission electron microscope imaging and monochromated scanning TEM electron energy-loss spectroscopy, and presents an analytical quantum mechanical model that describes this shift due to a change in particle permittivity.

Spectral Properties and Relaxation Dynamics of Surface Plasmon Electronic Oscillations in Gold and Silver Nanodots and Nanorods

The field of nanoparticle research has drawn much attention in the past decade as a result of the search for new materials. Size confinement results in new electronic and optical properties, possibly

Spotlight on Plasmon Lasers

A plasmonics-based design approach is enabling coherent light sources to be built at the nanometer scale, enabling scaling down of photonic devices, similar to the trend in electronics.

Colloquium: Light scattering by particle and hole arrays

This Colloquium analyzes the interaction of light with two-dimensional periodic arrays of particles and holes. The enhanced optical transmission observed in the latter and the presence of surface

Anomalous light scattering by small particles.

It is shown that if close to the plasmon (polariton) resonance frequencies the radiative damping prevails over dissipative losses, sharp giant resonances with very unusual properties may be observed.

The design and simulated performance of a coated nano-particle laser.

The optical properties of a concentric nanometer-sized spherical shell comprised of an (active) 3-level gain medium core and a surrounding plasmonic metal shell are investigated and a "super" resonance is observed, suggesting the possibility of realizing a highly sub-wavelength laser with dimensions more than an order of magnitude below the traditional half-wa wavelength cavity length criteria.

Demonstration of a spaser-based nanolaser

It is shown that 44-nm-diameter nanoparticles with a gold core and dye-doped silica shell allow us to completely overcome the loss of localized surface plasmons by gain and realize a spaser, and that outcoupling of surface plasmon oscillations to photonic modes at a wavelength of 531 nm makes this system the smallest nanolaser reported to date—and to the authors' knowledge the first operating at visible wavelengths.

Enormous Hyper-Rayleigh Scattering from Nanocrystalline Gold Particle Suspensions

The recent emergence of advanced technological applications for colloidal gold suspensions and related particle assemblies and interfaces has created a demand for new chemical and physical techniques

Plasmon lasers at deep subwavelength scale

The experimental demonstration of nanometre-scale plasmonic lasers, generating optical modes a hundred times smaller than the diffraction limit are reported, opening up new avenues in the fields of active photonic circuits, bio-sensing and quantum information technology.

Confined plasmons in nanofabricated single silver particle pairs: experimental observations of strong interparticle interactions.

By systematically varying the disk size and surface separation and recording elastic scattering spectra in different polarization configurations, evidence for extremely strong interparticle interactions is found.