scholarly journals Indium tin oxide refractometer in the visible and near infrared via lossy mode and surface plasmon resonances with Kretschmann configuration

2016 ◽  
Vol 108 (4) ◽  
pp. 043507 ◽  
Author(s):  
V. Torres ◽  
M. Beruete ◽  
P. Sánchez ◽  
I. Del Villar
Keyword(s):  
Surface Plasmon ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Near Infrared ◽  
Surface Plasmon Resonances ◽  
Kretschmann Configuration ◽  
Plasmon Resonances

Tunable localized surface plasmon resonances of asymmetric Au/SiO2/Au cross-shape nanobars

2014 ◽  
Vol 28 (17) ◽  
pp. 1450143 ◽  
Author(s):  
M. L. Wan ◽  
H. J. Du ◽  
Y. L. Song ◽  
F. Q. Zhou ◽  
K. J. Dai
Keyword(s):  
Electric Fields ◽  
Surface Plasmon ◽  
Near Infrared ◽  
Dipole Approximation ◽  
Localized Surface Plasmon ◽  
Surface Plasmon Resonances ◽  
Localized Surface Plasmon Resonances ◽  
Plasmon Resonances ◽  
Surface Enhanced Raman ◽  
Infrared Spectral

The plasmonic properties of asymmetric Au / SiO 2/ Au sandwiched cross-shape nanobars are investigated theoretically using the discrete dipole approximation (DDA) method. Two localized surface plasmon resonances are observed in the extinction spectra, which perform extreme sensitivity to the length and width of the nanobar and can be tuned easily throughout visible and into near-infrared spectral regions. The local electric fields around the nanobar are calculated and a pure electromagnetic Raman enhancement factor of about 106 can be achieved. In addition, compared to a monolayer gold nanobar, it exhibits more "hot spots" and stronger localized electric field enhancements. This plasmonic substrate provides potential applications in surface enhanced Raman scattering (SERS) and nonlinear optical devices.

scholarly journals Multiple Surface Plasmon Resonances and Near-Infrared Field Enhancement of Gold Nanowells

2008 ◽  
Vol 80 (13) ◽  
pp. 4945-4950 ◽  
Author(s):  
Kebin Li ◽  
Liviu Clime ◽  
Lilin Tay ◽  
Bo Cui ◽  
Matthias Geissler ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Near Infrared ◽  
Field Enhancement ◽  
Surface Plasmon Resonances ◽  
Plasmon Resonances ◽  
Multiple Surface Plasmon Resonances

The Surface Plasmon Resonance Absorption of Indium Tin Oxide Nanoparticles and its Control

2015 ◽  
Vol 1118 ◽  
pp. 160-165 ◽  
Author(s):  
Yong Feng Tuo ◽  
Yu Ping Wu ◽  
Min Huang ◽  
Kai Wang ◽  
Yue Huang ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Tin Oxide ◽  
Plasmon Resonance ◽  
Indium Tin Oxide ◽  
Near Infrared ◽  
Mixed Solution ◽  
Reducing Atmosphere ◽  
Oxidizing Atmosphere ◽  
Tin Chloride

Indium tin oxide (ITO) nanoparticles (NPs) were prepared by a coprecipitation process from a mixed solution consisting of indium chloride and tin chloride. The surface plasmon resonance (SPR) absorption was studied under different calcinate atmospheres. The characteristics of the optical properties, especially the absorption of near-infrared (NIR) region was recorded by the UV-Vis-NIR absorption spectroscopy. The results show that the SPR absorption peak appears at 2500 nm under an oxidizing atmosphere (air) or at 1300 nm under a reducing atmosphere (a gas mixture of Ar and 5 vol% H2) when calcinated under a single atmosphere. There is no change in the plasmon frequency with the variance of calcinate temperatures and therefore no change in the free carrier concentration. However, when calcinated first at 600 °C under an oxidizing atmosphere and then reheated under a reducing atmosphere at different temperature, the SPR absorption peaks of the ITO NPs are at the range of from 1200 nm to 1430 nm, undergoing a blue shift as the reducing process temperature increases. The SPR absorption of the prepared ITO NPs is easily controlled by calcinate temperature under a process of calcination first under an oxidizing atmosphere and followed by under a reducing atmosphere.

Tunable near-infrared localized surface plasmon resonances of djurleite nanocrystals: effects of size, shape, surface-ligands and oxygen exposure time

2015 ◽  
Vol 3 (26) ◽  
pp. 6686-6691 ◽  
Author(s):  
Dongxu Zhu ◽  
Aiwei Tang ◽  
Haihang Ye ◽  
Miao Wang ◽  
Chunhe Yang ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Exposure Time ◽  
Near Infrared ◽  
Resonance Absorption ◽  
Localized Surface Plasmon ◽  
Surface Plasmon Resonances ◽  
Surface Ligands ◽  
Localized Surface Plasmon Resonances ◽  
Oxygen Exposure ◽  
Plasmon Resonances

The effects of size, shape, surface ligands and oxygen exposure time on the localized surface plasmon resonance absorption in monoclinic djurleite nanocrystals have been demonstrated.

A Facile Route Toward Hydrophilic Plasmonic Copper Selenide Nanocrystals: New Perspectives for SEIRA Applications

2021 ◽  
Author(s):  
Jailson José da Silva ◽  
Wedja Maciel dos Santos ◽  
Rafael Fernandes ◽  
Adriana Fontes ◽  
Beate S. Santos ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Near Infrared ◽  
Copper Selenide ◽  
Localized Surface Plasmon ◽  
Surface Plasmon Resonances ◽  
Localized Surface Plasmon Resonances ◽  
Wide Range ◽  
Plasmon Resonances ◽  
P Type ◽  
Facile Route

Non-stochiometric copper selenide nanocrystals (NCs) are p-type semiconductors that have a wide range of applications, from biomedicine to electronics. These NCs present localized surface plasmon resonances (LSPRs) in the near-infrared...

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