scholarly journals Copper–gold sandwich structures on PE and PET and their SERS enhancement effect

RSC Advances ◽  
2017 ◽  
Vol 7 (37) ◽  
pp. 23055-23064 ◽  
Author(s):  
Alena Reznickova ◽  
Petr Slepicka ◽  
Hoang Yen Nguyenova ◽  
Zdenka Kolska ◽  
Marcela Dendisova ◽  
...  
Keyword(s):  
Surface Plasmons ◽  
Surface Plasmon ◽  
Copper Nanoparticles ◽  
Surface Plasmon Polaritons ◽  
Sandwich Structures ◽  
Enhancement Effect ◽  
Localized Surface Plasmons ◽  
Sers Enhancement ◽  
Copper Gold ◽  
Plasmon Polaritons

In this paper we have investigated the SERS effect of gold–copper sandwich structures i.e. the coupling between surface plasmon polaritons supported by the gold grating and localized surface plasmons excited on the grafted copper nanoparticles.

Optical Interaction in a Plasmonic Metallic Nanoparticle Chain Coupled to a Metallic Film

2012 ◽  
Vol 534 ◽  
pp. 46-50
Author(s):  
De Wen Zhao ◽  
Song Gang ◽  
Zhi Wei Wei ◽  
Li Yu
Keyword(s):  
Surface Plasmons ◽  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Metallic Film ◽  
Localized Surface Plasmons ◽  
Metallic Nanoparticle ◽  
Thin Metallic Film ◽  
Metallic Particles ◽  
Particle Chain ◽  
Plasmon Polaritons

We demonstrated the coupling of localized surface plasmons and surface plasmon polaritons modes in a system composed of a metallic particle chain separated from a thin metallic film. The results showed that: (1) the thickness of the metallic particles buried in the dielectric space, (2) the positions of the particles influence the level of interaction between localized surface plasmons and surface plasmon polaritons modes. Meanwhile, the positions of the particles and the thickness of the metallic particles control the electromagnetic enhancement and influence the electric field distributions in this system. This kind of system has a very promising candidate for biosensing and surface enhanced spectroscopy applications.

Spoof surface plasmon polaritons supported by ultrathin corrugated metal strip and their applications

2015 ◽  
Vol 4 (3) ◽  
Author(s):  
Xi Gao ◽  
Tie Jun Cui
Keyword(s):  
Surface Plasmons ◽  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
High Performance ◽  
Localized Surface Plasmons ◽  
Full Wave ◽  
Plasmonic Metamaterials ◽  
Corrugated Metal ◽  
Plasmon Polaritons ◽  
Spoof Surface Plasmon Polaritons

AbstractIn this review, we present a brief introduction on the spoof surface plasmons supported on corrugated metallic plates with nearly zero thickness. We mainly focus on the propagation characteristics of spoof surface plasmon polaritons (SPPs), excitation of planar SPPs, and several plasmonic devices including the bending waveguide, Y-shaped beam splitter, frequency splitter, and filter. These devices are designed and fabricated with either planar or conformal plasmonic metamaterials, which are validated by both full-wave simulations and experiments, showing high performance. We also demonstrate that an ultrathin textured metallic disk can support multipolar spoof localized surface plasmons, either with straight or curved grooves, from which the Fano resonances are also observed.

scholarly journals Plasmon-Enhanced Photoluminescence of an Amorphous Silicon Quantum Dot Light-Emitting Device by Localized Surface Plasmon Polaritons in Ag/SiOx:a-Si QDs/Ag Sandwich Nanostructures

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Tsung-Han Tsai ◽  
Ming-Yi Lin ◽  
Wing-Kit Choi ◽  
Hoang Yan Lin
Keyword(s):  
Amorphous Silicon ◽  
Surface Plasmons ◽  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Localized Surface Plasmon ◽  
Light Emitting ◽  
Grating Structure ◽  
Enhanced Photoluminescence ◽  
Silicon Quantum Dot ◽  
Plasmon Polaritons

We investigated experimentally the plasmon-enhanced photoluminescence of the amorphous silicon quantum dots (a-Si QDs) light-emitting devices (LEDs) with theAg/SiOx:a-Si QDs/Ag sandwich nanostructures, through the coupling between the a-Si QDs and localized surface plasmons polaritons (LSPPs) mode, by tuning a one-dimensional (1D) Ag grating on the top. The coupling of surface plasmons at the top and bottomAg/SiOx:a-Si QDs interfaces resulted in the localized surface plasmon polaritons (LSPPs) confined underneath the Ag lines, which exhibit the Fabry-Pérot resonance. From the Raman spectrum, it proves the existence of a-Si QDs embedded in Si-richSiOxfilm (SiOx:a-Si QDs) at a low annealing temperature (300°C) to prevent the possible diffusion of Ag atoms from Ag film. The photoluminescence (PL) spectra of a-Si QDs can be precisely tuned by a 1D Ag grating with different pitches and Ag line widths were investigated. An optimized Ag grating structure, with 500 nm pitch and 125 nm Ag line width, was found to achieve up to 4.8-fold PL enhancement at 526 nm and 2.46-fold PL integrated intensity compared to the a-Si QDs LEDs without Ag grating structure, due to the strong a-Si QDs-LSPPs coupling.

scholarly journals The gain enhancement effect of surface plasmon polaritons on terahertz stimulated emission in optically pumped monolayer graphene

2013 ◽  
Vol 15 (7) ◽  
pp. 075003 ◽  
Author(s):  
Takayuki Watanabe ◽  
Tetsuya Fukushima ◽  
Yuhei Yabe ◽  
Stephane Albon Boubanga Tombet ◽  
Akira Satou ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Stimulated Emission ◽  
Monolayer Graphene ◽  
Enhancement Effect ◽  
Optically Pumped ◽  
Gain Enhancement ◽  
Plasmon Polaritons ◽  
Effect Of Surface

A near-transparent 90∘ polarization rotator with an array of L-shaped holes inside a glass cube

2016 ◽  
Vol 30 (20) ◽  
pp. 1650259 ◽  
Author(s):  
Yan-Lin Liao ◽  
Yan Zhao ◽  
He-Ping Lu
Keyword(s):  
Surface Plasmons ◽  
Surface Plasmon ◽  
Single Layer ◽  
Destructive Interference ◽  
Localized Surface Plasmons ◽  
Cross Polarization ◽  
Polarization Rotation ◽  
Polarization Rotator ◽  
Plasmon Polaritons ◽  
Polarization Rotators

We report a near-transparent 90[Formula: see text] polarization rotator by using a single-layer microstructure. The co-polarization light has been suppressed by using destructive interference. At the same time, the transmission of cross-polarization light has been improved with inference effect between surface plasmon polaritons (SPPs) and localized surface plasmons (LSPs). This efficient polarization rotation mechanism may be very useful in designing polarization rotators.

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