Results 1 to 10 of about 254,968 (146)

Design of NIR-TERS system based on optimized grating on the AFM probe under radial polarized light for detection of molecular sample [PDF]

Journal of Optoelectronical Nanostructures, 2021
To the best of our knowledge, it is for the first time thatTERS system in near-infrared (NIR) spectrum isreporting. The current study proposed a most favorableatomic force microscopy (AFM) tip based on anincorporated optimal grating structure close to ...
Mohsen Katebi Jahromi, Rahim Ghayour, Zahra Adelpour   +2 more
doaj   +1 more source

Streamlines of the Poynting Vector and Chirality Flux around a Plasmonic Bowtie Nanoantenna

Nanomaterials, 2023
The streamlines of the energy flux (Poynting vectors) and chirality flux as well as the intensity of the electric field around various plasmonic nanostructures (nanocube, nanocuboid, nanotriangle, hexagonal nanoplate and bowtie nanoantenna) induced by a ...
Yun-Cheng Ku, Mao-Kuen Kuo, Jiunn-Woei Liaw   +2 more
doaj   +1 more source

All‐Optical and Label‐Free Stimulation of Action Potentials in Neurons and Cardiomyocytes by Plasmonic Porous Metamaterials

Advanced Science, 2021
Optical stimulation technologies are gaining great consideration in cardiology, neuroscience studies, and drug discovery pathways by providing control over cell activity with high spatio‐temporal resolution.
Giulia Bruno, Giovanni Melle, Andrea Barbaglia, Giuseppina Iachetta, Rustamzhon Melikov, Michela Perrone, Michele Dipalo, Francesco De Angelis   +7 more
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Influences of Plasma Plume Length on Structural, Optical and Dye Degradation Properties of Citrate-Stabilized Silver Nanoparticles Synthesized by Plasma-Assisted Reduction

Nanomaterials, 2022
Citrate-capped silver nanoparticles (Ag@Cit NPs) were synthesized by a simple plasma-assisted reduction method. Homogenous colloidal Ag@Cit NPs solutions were produced by treating a AgNO3-trisodium citrate-deionized water with an atmospheric-pressure ...
Tirtha Raj Acharya, Geon Joon Lee, Eun Ha Choi   +2 more
doaj   +1 more source

Localized surface plasmons of gold nanoparticles

St. Petersburg Polytechnical University Journal: Physics and Mathematics, 2022
In this paper, gold nanoparticle far-field and near-field optical responses are studied and simulated numerically. The electromagnetic field was excited by an electric dipole near one end of the nanorod, which is used to model the emission of a quantum ...
al-khursan amin, Abed Ahmed, Dakhil Tahseen   +2 more
doaj   +1 more source

Spectroscopic Study of Phytosynthesized Ag Nanoparticles and Their Activity as SERS Substrate

Chemosensors, 2022
The affordable and scalable synthesis of noble metal nanoparticles that are biocompatible without additional functionalization steps has been a growing field of research, stimulated by numerous prospective applications of these NPs.
Volodymyr Dzhagan, Oleksandr Smirnov, Mariia Kovalenko, Nazar Mazur, Oleksandr Hreshchuk, Nataliya Taran, Svitlana Plokhovska, Yaroslav Pirko, Alla Yemets, Volodymyr Yukhymchuk, Dietrich R. T. Zahn   +10 more
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Fano-Like Resonance of Heat-Reconfigurable Silicon Grating Metasurface Tuned by Laser-Induced Graphene

Nanomaterials, 2023
We propose a heat-reconfigurable metasurface composed of the silicon-based gold grating. The asymmetric Fano-like line shape is formed due to the mutual coupling of the local surface plasmon (LSP) in the gap between the two layers of Au gratings and the ...
Yukuan Ma, Yulei Huang, Yuehong Zhu, Hao Zhou, Congliao Yan, Shutong Wang, Guoliang Deng, Shouhuan Zhou   +7 more
doaj   +1 more source

Impurity Controlled near Infrared Surface Plasmonic in AlN

Nanomaterials, 2022
In this work, we used multi-scale computational simulation methods combined with density functional theory (DFT) and finite element analysis (FEA) in order to study the optical properties of substitutional doped aluminium nitride (AlN).
Quanjiang Li, Jingang Wang, Shenghui Chen, Meishan Wang   +3 more
doaj   +1 more source

Excitation of Surface Electromagnetic Waves at the Silver/NaCl Aqueous Solution Interface

Frontiers in Physics, 2021
The results of a study of the dynamics of the excitation angle of a surface electromagnetic wave (SEW) at the interface between a silver/NaCl aqueous solution of concentrations 10−3, 10−4, 10−6 and 10−10 M are presented.
M.A. Kononov, V.I. Pustovoy, V.V. Svetikov, V.V. Svetikov, B.A. Usievich   +4 more
doaj   +1 more source

Hybrid Graphene-Based Photonic-Plasmonic Biochemical Sensor with a Photonic and Acoustic Cavity Structure

Crystals, 2021
In this study, we propose a biochemical sensor that features a photonic cavity integrated with graphene. The tunable hybrid plasmonic-photonic sensor can detect the molecular fingerprints of biochemicals with a small sample volume.
Chan-Shan Yang, Yi-Sheng Cheng, Young-Chou Hsu, Yi-Cheng Chung, Jing-Ting Hung, Chien-Hao Liu, Jin-Chen Hsu, Cheng-Ying Chen, Chii-Rong Yang, Yu-Tai Li, Nan-Nong Huang, Tzy-Rong Lin   +11 more
doaj   +1 more source