Shape effects on localized surface plasmon resonances in metallic nanoparticles
نویسندگان
چکیده
منابع مشابه
Enhancing surface plasmon resonances of metallic nanoparticles by diatom biosilica.
Diatoms are single-celled algaes that make photonic-crystal-like silica shells or frustules with hierarchical micro- & nano-scale features consisting of two-dimensional periodic pores. This article reports the use of diatom frustules as an integration platform to enhance localized surface plasmon resonances of self-assembled silver nanoparticles (NPs) on the surface of diatom frustules. Theoret...
متن کاملLocalized surface-plasmon resonances on single and coupled nanoparticles through surface integral equations for flexible surfaces.
We present an advanced numerical formulation to calculate the optical properties of 3D nanoparticles (single or coupled) of arbitrary shape and lack of symmetry. The method is based on the (formally exact) surface integral equation formulation, implemented for parametric surfaces describing particles with arbitrary shape through a unified treatment (Gielis' formula). Extinction, scattering, and...
متن کاملLocalized surface-plasmon polaritons in disordered nanostructured metal surfaces: Shape versus Anderson-localized resonances
The electromagnetic wave scattering from disordered nanostructured metal surfaces supporting surfaceplasmon polaritons ~SPP! is studied by means of fully retarded scattering formulations. We investigate the two physical mechanisms which may underlie the excitation of localized SPP: Anderson localization and shape resonances. The former mechanism is discarded since plane-wave excited, localized ...
متن کاملControlling localized surface plasmon resonances in GeTe nanoparticles using an amorphous-to-crystalline phase transition.
Infrared absorption measurements of amorphous and crystalline nanoparticles of GeTe reveal a localized surface plasmon resonance (LSPR) mode in the crystalline phase that is absent in the amorphous phase. The LSPR mode emerges upon crystallization of amorphous nanoparticles. The contrasting plasmonic properties are elucidated with scanning tunneling spectroscopy measurements indicating a Burste...
متن کاملOptical properties of surface plasmon resonances of coupled metallic nanorods.
We present a systematic study of optical antenna arrays, in which the effects of coupling between the antennas, as well as of the antenna length, on the reflection spectra are investigated and compared. Such arrays can be fabricated on the facet of a fiber, and we propose a photonic device, a plasmonic optical antenna fiber probe, that can potentially be used for in-situ chemical and biological...
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: Journal of Nanoparticle Research
سال: 2012
ISSN: 1388-0764,1572-896X
DOI: 10.1007/s11051-012-0905-6