Results 1 to 10 of about 207,852 (158)

SERS-Based Local Field Enhancement in Biosensing Applications [PDF]

Molecules
Surface-enhanced Raman scattering (SERS) stands out as a highly effective molecular identification technique, renowned for its exceptional sensitivity, specificity, and non-destructive nature. It has become a main technology in various sectors, including
Yangdong Xie, Jiling Xu, Danyang Shao, Yuxin Liu, Xuzhou Qu, Songtao Hu, Biao Dong   +6 more
doaj   +4 more sources

Local Field Enhancement Due to the Edge States of Nanoplasmonic Crystal

Photonics, 2023
In this paper, we describe the effect of local electric field enhancement due to the existence of photonic edge states in a nanoplasmonic crystal. These states can be excited by a normal incident wave and are localized along the continuous line defect ...
Behrokh Beiranvand, Rustam A. Khabibullin, Alexander S. Sobolev   +2 more
doaj   +3 more sources

Fano resonance with high local field enhancement under azimuthally polarized excitation [PDF]

Scientific Reports, 2017
Being an enabling technology for applications such as ultrasensitive biosensing and surface enhanced spectroscopy, enormous research interests have been focused on further boosting the local field enhancement at Fano resonance.
Wuyun Shang, Fajun Xiao, Weiren Zhu, Hongsen He, Malin Premaratne, Ting Mei, Jianlin Zhao   +6 more
doaj   +2 more sources

Optimized T-shaped resonator via local enhancement model integration within a cell for enhanced Rydberg-atom receiver sensing [PDF]

Communications Engineering
Rydberg atom with resonators is regarded as promising atomic receivers to surpass conventional receivers’ sensitivity. However, previous research has presented diverse open resonator structures, focusing on design yet lacking in theoretical guidance ...
Bo Wu, Zhanshan Sun, Di Sang, Yi Liu, Qiang An, Yi Lin, Yunqi Fu   +6 more
doaj   +2 more sources

Local Field Enhancement: Comparing Self-Similar and Dimer Nanoantennas [PDF]

Journal of Physical Chemistry C, 2016
We study the local field enhancement properties of self-similar nanolenses and compare the obtained results with the performance of standard dimer nanoantennas. We report that, despite the additional structural complexity, self-similar nanolenses are unable to provide significant improvements over the field enhancement performance of standard plasmonic
Giovanni Pellegrini, Michele Celebrano, M Finazzi   +2 more
exaly   +4 more sources

Strong Field Enhancement and Unidirectional Scattering Based on Asymmetric Nanoantenna

Nanomaterials, 2022
Dielectric-metal nanostructures have lately emerged as one of the most promising approaches to modulating light at the optical frequency. Their remarkable electric and magnetic resonances give them a one-of-a-kind ability to augment local field ...
Dengchao Huang, Shilin Liu, Wei Li, Kang Yang, Ting Peng   +4 more
doaj   +1 more source

Fluorescent Microscopy of Hot Spots Induced by Laser Heating of Iron Oxide Nanoparticles

Photonics, 2023
Determination of the iron oxide nanoparticles (IONPs) local temperature during laser heating is important in the aspect of laser phototherapy. We have carried out theoretical modeling of IONPs local electromagnetic (EM) field enhancement and heating ...
Anastasia Ryabova, Daria Pominova, Inessa Markova, Aleksey Nikitin, Petr Ostroverkhov, Polina Lasareva, Alevtina Semkina, Ekaterina Plotnikova, Natalia Morozova, Igor Romanishkin, Kirill Linkov, Maksim Abakumov, Andrey Pankratov, Rudolf Steiner, Victor Loschenov   +14 more
doaj   +1 more source

Local field enhancement effects for nanostructuring of surfaces [PDF]

Journal of Microscopy, 2001
We report on a method that allows the nanostructuring of surfaces with intense laser pulses. For this purpose isolated polystyrene spheres with diameters in the order of the laser wavelength were deposited on a silicon or glass surface. Illumination with short and ultrashort laser pulses produced holes underneath these particles.
Münzer, Hans-Joachim, Bertsch, Micha, Zimmermann, Jörg, Mosbacher, Mario, Leiderer, Paul, Boneberg, Johannes   +5 more
openaire   +3 more sources

Sensitivity enhancement of plasmonic grating in the local field

Optics Express, 2020
A plasmonic grating consisting of parallel gold or silver nanowires on the glass substrate is an excellent sensor for refractive index measurement of a gas or liquid medium. We suggest measuring the local field in a gap between the wires to increase the sensitivity. The local electric field contains more information on the environment since it includes
L. L. Frumin, D. A. Shapiro
openaire   +2 more sources

Near-Field Second-Harmonic Generation Induced by Local Field Enhancement [PDF]

Physical Review Letters, 2003
The field near a sharp metal tip can be strongly enhanced if irradiated with an optical field polarized along the tip axis. We demonstrate that the enhanced field gives rise to local second-harmonic (SH) generation at the tip surface thereby creating a highly confined photon source. A theoretical model for the excitation and emission of SH radiation at
Bouhelier, Alexandre, Beversluis, M., Hartschuh, Achim, Novotny, Lukas   +3 more
openaire   +4 more sources