Tuning Plasmonic Resonance Wavelength by Ordered Silver Hole Arrays on Si and SiO2

2012 ◽  
Author(s):  
Hongwei Gao ◽  
Benzhong Wang ◽  
Jinghua Teng ◽  
Soo Chua ◽  
Ning Xiang
Keyword(s):  
Resonance Wavelength ◽  
Plasmonic Resonance ◽  
Hole Arrays

scholarly journals Tailoring optical cross sections of gold nanorods at a target plasmonic resonance wavelength using bromosalicylic acid

RSC Advances ◽  
2019 ◽  
Vol 9 (28) ◽  
pp. 16028-16034
Author(s):  
Weiwei Zou ◽  
Hao Xie ◽  
Yang Ye ◽  
Weihai Ni
Keyword(s):  
Cross Sections ◽  
Gold Nanorods ◽  
Cetyltrimethylammonium Bromide ◽  
Resonance Wavelength ◽  
Surfactant Mixture ◽  
Plasmonic Resonance ◽  
Fixed Target

We demonstrate finely tailoring optical cross sections of AuNRs at a fixed target resonance wavelength, on the basis of AuNR overgrowth using a binary surfactant mixture consisting 5-bromosalicylic acid (BSA) and cetyltrimethylammonium bromide (CTAB).

Near-IR (1 – 4 μm) control of plasmonic resonance wavelength in Ga-doped ZnO

2017 ◽  
Author(s):  
David C. Look ◽  
Kevin D. Leedy ◽  
Gordon J. Grzybowski ◽  
Bruce B. Claflin
Keyword(s):  
Resonance Wavelength ◽  
Plasmonic Resonance ◽  
Near Ir ◽  
Doped Zno

scholarly journals Gold nanoparticles as nanosources of heat

Photoniques ◽  
2018 ◽  
pp. 42-47 ◽  
Author(s):  
Guillaume Baffou
Keyword(s):  
Gold Nanoparticles ◽  
Incident Light ◽  
Resonance Wavelength ◽  
Plasmonic Resonance

Under illumination at their plasmonic resonance wavelength, gold nanoparticles can absorb incident light and turn into efficient nanosources of heat remotely controllable by light. This fundamental scheme is at the basis of an active field of research coined thermoplasmonics and encompasses numerous applications in physics, chemistry and biology at the micro and nano scales.

scholarly journals Fabrication and characterization of Au dimer antennas on glass pillars with enhanced plasmonic response

Nanophotonics ◽  
2017 ◽  
Vol 7 (2) ◽  
pp. 497-505 ◽  
Author(s):  
Pedram Sadeghi ◽  
Kaiyu Wu ◽  
Tomas Rindzevicius ◽  
Anja Boisen ◽  
Silvan Schmid
Keyword(s):  
Resonance Wavelength ◽  
Dark Field ◽  
Plasmonic Resonance ◽  
High Uniformity ◽  
Dark Field Microscopy ◽  
Scattering Spectra ◽  
Scattering Response ◽  
Difference Time ◽  
Microscopy Images

AbstractWe report on the fabrication and dark-field spectroscopy characterization of Au dimer nanoantennas placed on top of SiO2 nanopillars. The reported process enables the fabrication of nanopillar dimers with gaps down to 15 nm and heights up to 1 μm. A clear dependence of the plasmonic resonance position on the dimer gap is observed for smaller pillar heights, showing the high uniformity and reproducibility of the process. It is shown how increasing the height of nanopillars significantly affects the recorded elastic scattering spectra from Au nanoantennas. The results are compared to finite-difference time-domain (FDTD) and finite-element method (FEM) simulations. Additionally, measured spectra are accompanied by dark-field microscopy images of the dimers, showing the pronounced change in color. Placing nanoantennas on nanopillars with a height comparable to the in-plane dimer dimensions results in an enhancement of the scattering response, which can be understood through reduced interaction of the near-fields with the substrate. When increasing the pillar height further, scattering by the pillars themselves manifests itself as a strong tail at lower wavelengths. Additionally, strong directional scattering is expected as a result of the interface between the nanoantennas and nanopillars, which is taken into account in simulations. For pillars of height close to the plasmonic resonance wavelength, the scattering spectra become more complex due to additional scattering peaks as a result of larger geometrical nonuniformities.

Tunability of hybridized plasmonic waveguide mediated by surface plasmon polaritons

2014 ◽  
Vol 16 (30) ◽  
pp. 16233-16240 ◽  
Author(s):  
Ming-Ming Jiang ◽  
Hong-Yu Chen ◽  
Chong-Xin Shan ◽  
De-Zhen Shen
Keyword(s):  
Surface Plasmon ◽  
Resonance Wavelength ◽  
Metal Films ◽  
Plasmonic Waveguide ◽  
Plasmonic Resonance ◽  
Low Dielectric ◽  
Dielectric Spacer ◽  
Spacer Layer ◽  
Mode Characteristics ◽  
Plasmon Polaritons

A hybridized plasmonic waveguide was proposed, which consisting of two kind of different metal films and a low-dielectric spacer layer inserted between. The spacer could be used to achieve the plasmonic resonance wavelength transfer from 450 nm to 600 nm, as well as the tunability of mode characteristics.

scholarly journals A Controllable Plasmonic Resonance in a SiC-Loaded Single-Polarization Single-Mode Photonic Crystal Fiber Enables Its Application as a Compact LWIR Environmental Sensor

Materials ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 3915
Author(s):  
Tianyu Yang ◽  
Can Ding ◽  
Richard W. Ziolkowski ◽  
Y. Jay Guo
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Single Mode ◽  
Resonance Wavelength ◽  
Resonant Absorption ◽  
Plasmonic Resonance ◽  
Crystal Fiber ◽  
The Core ◽  
Environmental Sensor ◽  
Single Polarization

Near-perfect resonant absorption is attained in a single-polarization single-mode photonic crystal fiber (SPSM PCF) within the long-wave infrared (LWIR) range from 10 to 11 μm. The basic PCF design is a triangular lattice-based cladding of circular air holes and a core region augmented with rectangular slots. A particular set of air holes surrounding the core is partially filled with SiC, which exhibits epsilon near-zero (ENZ) and epsilon negative (ENG) properties within the wavelength range of interest. By tuning the configuration to have the fields of the unwanted fundamental and all higher order modes significantly overlap with the very lossy ENG rings, while the wanted fundamental propagating mode is concentrated in the core, the SPSM outcome is realized. Moreover, a strong plasmonic resonance is attained by adjusting the radii of the resulting cylindrical core-shell structures. The cause of the resonance is carefully investigated and confirmed. The resonance wavelength is shown to finely shift, depending on the relative permittivity of any material introduced into the PCF’s air holes, e.g., by flowing a liquid or gas in them. The potential of this plasmonic-based PCF structure as a very sensitive, short length LWIR spectrometer is demonstrated with an environmental monitoring application.

Near-infrared (1 to 4    μ m ) control of plasmonic resonance wavelength in Ga-doped ZnO

2017 ◽  
Vol 56 (5) ◽  
pp. 057109 ◽  
Author(s):  
David C. Look ◽  
Kevin D. Leedy ◽  
Gordon J. Grzybowski ◽  
Bruce B. Claflin
Keyword(s):  
Near Infrared ◽  
Resonance Wavelength ◽  
Plasmonic Resonance ◽  
Doped Zno
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