«Plasmonic»
۲۸٬۸۷۳ نتیجهAFRL-AFOSR-VA-TR-2016-0378 Tracking Energy Relaxation Within Plasmonic Metal Oxide Nanocrystals
Plasmonic noble metal nanocrystals (NCs) have received a large amount of research interest due to their ability to harvest light and direct it into a small region of space. However, the intrinsic high free carrier concentration of noble metal NCs makes it challenging to achieve p
On the Universal Scaling Behavior of the Distance Decay of Plasmon Coupling in Metal Nanoparticle Pairs: A Plasmon Ruler Equation
Localized surface plasmon resonances (LSPR) in lithographically fabricated gold (Au) nanodisc pairs are investigated using microabsorption spectroscopy and electrodynamic simulations. In agreement with previous work, we find that the fractional plasmon wavelength shift for polari
Observation of a Luttinger-liquid plasmon in metallic single-walled carbon nanotubes
Surface plasmons1, collective oscillations of conduction electrons, hold great promise for the nanoscale integration of photonics and electronics1–4. However, nanophotonic circuits based on plasmons have been significantly hampered by the difficulty in achieving broadband plasmon
Surface plasmon damping effects due to Ti adhesion layer in individual gold nanodisks
The adhesion layer used in nanofabrication process of metallic nanostructures affects the surface plasmon modes. We characterize the localized surface plasmon resonances (SPRs) of gold nanodisks of various diameters and heights while varying the thickness of the Ti adhesion layer
All-aluminum hierarchical plasmonic surfaces in the infrared
All-Aluminum metal-insulator-metal resonator structures with multiple metal-insulator stacks showing resonances in the mid-infrared (MIR) are fabricated. Ultrathin native Al2O3 is used as the insulator layers enabling simple fabrication of the resonator structures. The structures
Plasmon Hybridization in Nanoparticle Dimers
We apply the recently developed plasmon hybridization method to nanoparticle dimers, providing a simple and intuitive description of how the energy and excitation cross sections of dimer plasmons depend on nanoparticle separation. We show that the dimer plasmons can be viewed as
High aspect ratio titanium nitride trench structures as plasmonic biosensor
High aspect ratio titanium nitride (TiN) grating structures are fabricated by the combination of deep reactive ion etching (DRIE) and atomic layer deposition (ALD) techniques. TiN is deposited at 500 ◦C on a silicon trench template. Silicon between vertical TiN layers is selectiv
Circular slit-groove plasmonic interferometers: a generalized approach to high-throughput biochemical sensing
A class of plasmonic interferometers consisting of a circular slit flanked by a concentric circular groove is demonstrated. Laying in-between the conventional bullseye and the linear slit-groove interferometers, these circular slit-groove interferometers show a polarization-insen
Ultrafast optical switching of infrared plasmon polaritons in high-mobility graphene
The success of metal-based plasmonics for manipulating light at the nanoscale has been empowered by imaginative designs and advanced nano-fabrication. However, the fundamental optical and electronic properties of elemental metals, the prevailing plasmonic media, are difficult to
Title Unidirectional Surface Plasmon-polariton Excitation by a Compact Slot Partially Filled with Dielectric Unidirectional Surface Plasmon-polariton Excitation by a Compact Slot Partially Filled with Dielectric References and Links
We propose a new scheme on unidirectional surface plasmonpolariton (SPP) excitation with the following advantages: ultracompact size, working at arbitrary incidence angle and over a wide spectrum. The proposed structure utilizes a partially filled metallic slot with dielectric to