Polaritons in Nanocomposites of Metal Nanoparticles – Dielectric
نویسندگان
چکیده
منابع مشابه
Surface enhanced Raman scattering of silver sensitized cobalt nanoparticles in metal-dielectric nanocomposites.
We report the preparation of a new type of nanocomposite containing cobalt and silver nanoparticles organized in parallel layers with a well controlled separation. This arrangement allows the observation of an enhanced low-frequency Raman signal at the vibration frequency of cobalt nanoparticles excited through the surface plasmons of silver nanoparticles. Numerical simulations of the electric ...
متن کاملSurface plasmon polaritons in curved chains of metal nanoparticles
Surface plasmon polaritons (SPPs) that can be excited under a variety of different physical scenarios in chains of metal nanoparticles (plasmonic chains) is a topic of vigorous ongoing research [1–8]. Applications related to wave guiding, nanoscale manipulation and transport of optical information, and minituarization of optoelecronic elements have been envisioned. The laws governing the propag...
متن کاملOn the dielectric function tuning of random metal-dielectric nanocomposites for metamaterial applications.
The potential of random metal-dielectric nanocomposites as constituent elements of metamaterial structures is explored. Classical effective medium theories indicate that these composites can provide a tunable negative dielectric function with small absorption losses. However, the tuning potential of real random composites is significantly lower than the one predicted by classical theories, due ...
متن کاملPlasmonic Excitations of 1D Metal-Dielectric Interfaces in 2D Systems: 1D Surface Plasmon Polaritons
Surface plasmon-polariton (SPP) excitations of metal-dielectric interfaces are a fundamental light-matter interaction which has attracted interest as a route to spatial confinement of light far beyond that offered by conventional dielectric optical devices. Conventionally, SPPs have been studied in noble-metal structures, where the SPPs are intrinsically bound to a 2D metal-dielectric interface...
متن کاملDirect observation of amplified spontaneous emission of surface plasmon polaritons at metal/dielectric interfaces
We report on direct observation of amplified spontaneous emission (ASE) of surface plasmon polaritons (SPPs) at the interface of a silver film and a gain medium. Based on a typical Kretschmann configuration incorporated with Rhodamine 6G molecules, the growing ASE spectra of SPPs have been clearly identified by carefully conducting a pump-dependent angle-resolved spectral measurement. Spectral ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: NBI Technologies
سال: 2019
ISSN: 2658-3593
DOI: 10.15688/nbit.jvolsu.2019.2.7