Electromagnetic field enhancement in TERS configurations

2009 ◽  
Vol 40 (10) ◽  
pp. 1343-1348 ◽  
Author(s):  
Zhilin Yang ◽  
Javier Aizpurua ◽  
Hongxing Xu
Langmuir ◽  
2018 ◽  
Vol 34 (47) ◽  
pp. 14124-14133 ◽  
Author(s):  
Vanessa H. Fragal ◽  
Elizângela H. Fragal ◽  
Adley F. Rubira ◽  
Rafael Silva

Plasmonics ◽  
2016 ◽  
Vol 12 (6) ◽  
pp. 1929-1937 ◽  
Author(s):  
Zao Yi ◽  
Miao Liu ◽  
Jiangshan Luo ◽  
Xibin Xu ◽  
Weibin Zhang ◽  
...  

2015 ◽  
Vol 17 (33) ◽  
pp. 21220-21225 ◽  
Author(s):  
J. Kozuch ◽  
N. Petrusch ◽  
D. Gkogkou ◽  
U. Gernert ◽  
I. M. Weidinger

Simultaneous use of SERS and impedance spectroscopy allows determining electromagnetic field enhancement factors of electrode surfaces with random nanostructures.


2008 ◽  
Vol 8 (6) ◽  
pp. 791-796 ◽  
Author(s):  
Boris Gelmont ◽  
Ramakrishnan Parthasarathy ◽  
Tatiana Globus ◽  
Alexei Bykhovski ◽  
Nathan Swami

2018 ◽  
Vol 47 (9) ◽  
pp. 5072-5076 ◽  
Author(s):  
J. L. Pura ◽  
J. Souto ◽  
P. Periwal ◽  
T. Baron ◽  
J. Jiménez

2021 ◽  
Vol 2015 (1) ◽  
pp. 012013
Author(s):  
L S Basalaeva ◽  
N N Kurus ◽  
E E Rodyakina ◽  
K V Anikin ◽  
A G Milekhin

Abstract In this work, approaches for fabrication metal coated probes for Tip Enhanced Raman Spectroscopy (TERS) are considered. It was proposed to use optical characterization of probes to achieve the effective TERS of semiconductor nanoobjects. The shape and size of the metal cluster at the tip apex determines the position of the localized surface plasmon resonance, the electromagnetic field enhancement and, thus, TERS performance. The possibility of optimizing the characteristics of the probes for TERS studies of nanoobjects has been investigated.


Sensors ◽  
2021 ◽  
Vol 21 (24) ◽  
pp. 8345
Author(s):  
Han-Wen Cheng ◽  
Shu-Yan Xue ◽  
Jing Li ◽  
Justine S. Gordon ◽  
Shan Wang ◽  
...  

The exploration of the plasmonic field enhancement of nanoprobes consisting of gold and magnetic core@gold shell nanoparticles has found increasing application for the development of surface-enhanced Raman spectroscopy (SERS)-based biosensors. The understanding of factors controlling the electromagnetic field enhancement, as a result of the plasmonic field enhancement of the nanoprobes in SERS biosensing applications, is critical for the design and preparation of the optimal nanoprobes. This report describes findings from theoretical calculations of the electromagnetic field intensity of dimer models of gold and magnetic core@gold shell nanoparticles in immunoassay SERS detection of biomarkers. The electromagnetic field intensities for a series of dimeric nanoprobes with antibody–antigen–antibody binding defined interparticle distances were examined in terms of nanoparticle sizes, core–shell sizes, and interparticle spacing. The results reveal that the electromagnetic field enhancement not only depended on the nanoparticle size and the relative core size and shell thicknesses of the magnetic core@shell nanoparticles but also strongly on the interparticle spacing. Some of the dependencies are also compared with experimental data from SERS detection of selected cancer biomarkers, showing good agreement. The findings have implications for the design and optimization of functional nanoprobes for SERS-based biosensors.


2019 ◽  
Vol 27 (5) ◽  
pp. 7196 ◽  
Author(s):  
Laaya Sabri ◽  
Qinglan Huang ◽  
Jui-Nung Liu ◽  
Brian T. Cunningham

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