Plasmonics
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A Polarization-Independent SPR Fiber Sensor
Plasmonics - Tập 5 - Trang 7-12 - 2009
The resonance of surface plasma waves in metallic layers is a strongly polarization-dependent phenomenon by the very nature of the physical effect responsible of that resonance. This implies the necessity of polarization-controlling elements to be added to any operative surface-plasmon-resonance-based sensor. A fully symmetrical, circular-section double deposition of a metallic and a dielectric la...... hiện toàn bộ
Tunable Circular Dichroism of Achiral Graphene Plasmonic Structures
Plasmonics - Tập 12 - Trang 829-833 - 2016
Graphene bilayered split rings (BSRs) are proposed to generate tunable circular dichroism (CD). BSRs with traditional materials do not elicit the CD effect because of C4 symmetry. By contrast, BSRs with graphene can achieve the CD effect by varying the Fermi energy of each part of the split rings. The CD signal can be reversed from positive to negative or vice versa by exchanging the Fermi energy....... hiện toàn bộ
A Study on the Influence of Metal Fe, Ag, and Mn Doping and (Fe/Mn and Ag/Mn) Dual-Doping on the Structural, Morphological, Optical, and Antibacterial Activity of CuS Nanostructures
Plasmonics - - Trang 1-20 - 2023
CuS nanostructures with high surface areas were produced through a hydrothermal method using simple materials. These included pure CuS, as well as CuS doped with Fe, Ag, and Mn, as well as dual-doped with Fe/Mn and Ag/Mn. X-ray diffraction (XRD), field-emission scanning electron microscopes (FE-SEM), chemical composition (EDX) analysis, zeta potential, ultraviolet–visible (UV–vis) absorption spect...... hiện toàn bộ
Dual-controllable Plasmon-induced Transparency Based on Active Borophene Metasurface in the Near-infrared Region
Plasmonics - Tập 18 Số 2 - Trang 761-768 - 2023
Numerical Analysis of Three-dimensional Nanodisk Array–based Surface Plasmon Resonance Biosensors for SARS-CoV-2 Detection
Plasmonics - Tập 18 - Trang 769-779 - 2023
With continuous mutations of SARS-CoV-2 virus, new highly contagious and fast-spreading variants have emerged, including Delta and Omicron. The popular label-free immunosensor based on surface plasmon resonance (SPR) technique can be used for real-time monitoring of the ligand-analyte or antibody-antigen interactions occurring on the sensor surface. In this work, an SPR-based biosensor combined wi...... hiện toàn bộ
Photon Statistics of a Hybrid Quantum Dot-Metal Nanoparticle Cluster
Plasmonics - Tập 12 - Trang 1-8 - 2016
A theoretical study of photon statistics of an optically driven quantum dot located near a metal nanoparticle cluster (composed of one or two nanoparticles) is presented. Considering the system in the weak Rabi frequency regime, an analytical formula for anti-bunching time is derived. Using a photon Green’s function method based on the exact quantization of electromagnetic field in a dissipative m...... hiện toàn bộ
Các hạt nano lõi-vỏ Magnetite-Bạc: Tổng hợp, Đặc trưng và Tính chất Quang học Dịch bởi AI
Plasmonics - Tập 17 - Trang 2385-2390 - 2022
Bột nano hợp kim lõi-vỏ Fe3O4 và Fe3O4/Ag đã được tổng hợp bằng phương pháp đồng kết tủa. Cấu trúc, vi cấu trúc, tính chất từ tính và quang học của Fe3O4/Ag và Fe3O4 đã được nghiên cứu. Các mẫu XRD và phổ UV-Vis cho thấy rằng các hạt Fe3O4 và Fe3O4/Ag có cấu trúc nano đã được tổng hợp thành công. Hình ảnh chế độ AFM và MFM của bột Fe3O4 và Fe3O4/Ag xác nhận sự hình thành của các hạt Fe3O4 trong kh...... hiện toàn bộ
Plasmonic Modulator Based on Graphene and Dual Back-to-Back U-Shaped Silicon Waveguide for Optical Communication Networks
Plasmonics - Tập 18 - Trang 1467-1476 - 2023
A broadband plasmonic optical modulator based on a dual back-to-back U-shaped silicon waveguide and double layers of graphene has been investigated. The proposed structure is designed at TE mode over a range of wavelengths extending from 1.1 to 1.9 μm. By adjusting the geometry of the U-shaped structure, the modulator’s performance has been tuned. Utilizing propagation loss, bandwidth, power consu...... hiện toàn bộ
Synthesis of Ciprofloxacin-Conjugated Gold Nanoparticles and their Study Antibacterial Effects on Growth Biofilm Formation Through Nebulizer Mask Against Respiratory Infection
Plasmonics - - Trang 1-15 - 2023
An efficient strategy involves the use of antibiotic-conjugated nanoparticles. This research primarily aimed to enhance the biosynthesis of gold nanoparticles by binding them with ciprofloxacin. We investigated the biological, optical, and structural characteristics of gold nanoparticles (AuNPs) and their combination with ciprofloxacin (CIP@AuNPs). We performed a number of analyses using Fourier-t...... hiện toàn bộ
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