Search
41 articles for “Plasmon”
-
Coupled Plasmon Phonon Polariton Waves in Cylindrical Zinc Selenide (ZnSe) Semiconductor: A Theoretical Study
Abstract: Zinc Selenide (ZnSe) is a semiconductor material. In this study, Bloch hydrodynamical model is applied as a theoretical tool to investigate the coupling among plasmons, phonons and photons in the Zinc Selenide (ZnSe) semiconductor material. Here the geometrical shape of this semiconductor is taken cylindrical and surrounded with vacuum as a dielectric medium. Plasmons are the quanta of elementary excitations produced by the valence electron oscillations and phonons are the …
Published in Research & Reviews : Journal of Physics · Vol. 11, Issue 2, 2022 · pp. 1–5 Read article
-
Study of Phase Velocity and Magneto Plasmon Dispersion on the Surface of Carbon Nanotubes in Low Energy State
Abstract: Several authors have worked on theoretical and experimental plasmon excitations. The researchers have been studying the dispersion relation of magneto plasmon in the low energy state on a cylindrical surface of carbon nanotube obtained with the help of linear-angular momentum transfer. Here, we demonstrate the Dirac-like Hamiltonian equation for carbon nanotubes in the presence and absence of a parallel applied magnetic field. We assume the cylindrical carbon nanotube is infinitesimally …
Published in Research & Reviews : Journal of Physics · Vol. 11, Issue 3, 2022 · pp. 21–25 Read article
-
A technical review and analysis of Surface Plasmon Resonance based Optical Fibre Sensors for exploiting oxides materials
Abstract: The review focuses on the most important contributions of oxides materials in the field of surface plasmon resonance in modern years. Surface plasmon resonance (SPR) based fiber optic sensor with indium oxide (In2O3) layer covered on the center of the optical fiber is displayed and theoretical examined. The sensitivity of the SPR based fiber optic sensor has been also assessed numerically. Itis indicated that the proposed SPR based fiber optic …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 22, Issue 1, 2020 · pp. 1–5 Read article
-
Design of Plasmonic Based Splitters for WDM Applications
Abstract: AbstractPlasmonics has special property of metallic nanostructures to allow manipulation and routing of light at nanoscale. In this paper, 1×2 and 1×4 splitters are designed using metal-insulator-metal (MIM) plasmonic waveguides. These proposed splitter designs could be used to conquer various filtering devices for high assimilation in surface plasmon polaritons based metallic surfaces. The results are verified using finite difference time domain (FDTD).Keywords: Plasmonics waveguides, surface plasmons, finite difference time domain …
Published in Trends in Opto-electro & Optical Communication · Vol. 6, Issue 1, 2016 · pp. 14–19 Read article
-
Recent Progress in Synthesis of Metal Nanostructures in Plasmonic: A Review
Abstract: Plasma physics is a very mature field, studied extensively for well over a century the cross-disciplinary field of plasmonics (electromagnetics of metallic nanostructures), on the other hand, has only recently gained popularity due to its potential for extraordinary light control via novel classes of materials and the resulting applications. As a result of this rapid development, the deep connections with the mother discipline, plasma physics, have sometimes been overlooked. The …
Published in Journal of Nuclear Engineering & Technology · Vol. 11, Issue 3, 2021 · pp. 1–4 Read article
-
Surface Plasmon Resonance (SPR) Based Dual Channel Optical Waveguide for Biosensing Application
Abstract: Surface plasmon resonance (SPR) biosensor is one of the optical sensors that exploit the specific properties of electromagnetic waves. Thus, SPR biosensors can be used for real time monitoring in the field of environmental science. It is a label-free technique that is used to detect biological analytes and analyze the binding interactions between a molecule in the liquid sample and an immobilized biomolecular recognition element that is placed on the …
Published in Recent Trends in Sensor Research & Technology · Vol. 3, Issue 2, 2016 · pp. 29–35 Read article
-
A tribute to plasmonic piezoelectric nanomechanical resonators
Abstract: Infrared technology has been used for civilian applications in a wide variety of applications, inclusive of medical diagnostics, biological and chemical threat detection, electrical power system inspection, infrared spectroscopy, and thermal imaging. Applicability of photon detection and thermal sense has been based on infrared detectors, where photon detection links interaction between photons and electrons in a semiconductor material to produce an electrical output signal upon exposure to infrared radiation. Advantages …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 23, Issue 2, 2021 · pp. 40–44 Read article
-
Behavior of Surface Polaritons on Cylindrical Semiconducting Materials at Nanoscale with Radius Dependence Frequency
Abstract: Surface plasmon resonance (SPR) is a physical property of the surface to investigate the important properties of optical behaviors for nanomaterial and biomaterial. It involves the excitation of electrons within a thin metal sheet by incident light at a specific angle, prompting them to propagate parallel to the surface. This sensitivity to external factors, such as changes in the refractive index of the surrounding medium due to molecular adsorption, underscores …
Published in Research & Reviews : Journal of Physics · Vol. 13, Issue 2, 2024 · pp. 1–7 Read article
-
Surface Properties of Magneto Plasmons on the Surface of Carbon Nanotubes (CNTs)
Abstract: The theoretical study of Raman Spectroscopy of CNTs showed that on increasing the diameter of both semiconducting and metallic carbon nanotubes, the energy separation between valence band and conduction band decreases. In this review paper, the author also compares the obtained results with others and it is found that the result is in good agreement but the magnitude is slightly less. The experimental result of Raman Radial Breathing Mode (RBM) …
Published in Research & Reviews : Journal of Physics · Vol. 9, Issue 2, 2020 · pp. 1–5 Read article
-
Innovative Approaches to Luminescence: Exciton-Polariton Lasers and Quantum Confinement in 2D Materials
Abstract: The phenomenon known as luminescence occurs when an external energy of any kind excites a substance's electronic state, and the excited energy is released as light. Luminescence is the absence of heat produced by light emission. Luminescence comes in a variety of forms, including thermoluminescence, bioluminescence, and chemiluminescence. Examples of luminescence include flat-screen TVs, LED lights, and bioluminescent phytoplankton. The measurement of the emission spectrum produced when previously excited atoms …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 2, Issue 1, 2024 · pp. 26–33 Read article
-
Theoretical Study of UV Surface Waves in AlAs and AlN
Abstract: Surface waves excited at the interface between polar semiconductor surface and a dielectric when electromagnetic waves of appropriate frequency are incident on it. When the incident electromagnetic energy in the form of photons is absorbed, these surface excitations generate. They are of different kinds such as plasmon, phonon, exciton etc. Plasmon is the quanta of valence electron oscillation; phonon is the quanta of lattice vibration and exciton is the quanta …
Published in Research & Reviews : Journal of Physics · Vol. 12, Issue 1, 2023 · pp. 7–13 Read article
-
Theoretical Study of Surface Excitations at Planar Surface of Zinc Selenide (ZnSe)
Abstract: ZnSe is a II-VI semiconductor material and has very novel properties. So it is currently demanding for various applications. Dispersion relation is employed here to study the elementary surface excitations at the planar surface of Zinc Selenide (ZnSe) semiconductor. These excitations are of various types such as plasmons, phonons, excitons etc. Plasmons are the quanta of valence electron oscillations, phonons are the quanta of lattice vibrations and excitons are the …
Published in Research & Reviews : Journal of Physics · Vol. 11, Issue 3, 2022 · pp. 1–5 Read article
-
The study of Density Functional Theory for dispersion relation in Carbon nanotube with dielectric medium in a coupling mode
Abstract: The author shall study the excitation of Surface Plasmon and Phonon on cylindrical polar semiconducting material. The possibility of their interaction has been discussed with the help of dispersion relation for the dual mode of CNT by using inherent properties of the dielectric interface in dual mode. The phonon dispersion relation of the CNT is calculated by large supercells containing an isolated nanotube, Density functional Theory, and plane wave basis …
Published in Research & Reviews : Journal of Physics · Vol. 12, Issue 3, 2023 Read article
-
Green Synthesis of Gold Nanoparticles Using Piper Nigrum (Black Pepper) Aqueous Extract
Abstract: In the present study, we wish to report the green synthesis of gold nanoparticles using aqueous extract from fruit of black pepper. The extract with different concentrations was reduced with HAuCl4 aqueous solution at room temperature. The color change, pH change and UV-visible spectroscopic analysis reveal the surface plasmon resonance (SPR) of the final reaction product which confirms the reduction of Au3+ ion to gold nanoparticles. The FTIR spectra confirms …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 2, Issue 2, 2012 · pp. 48–57 Read article
-
A Review on Gold Nano Particles in Drug Delivery
Abstract: Gold Nano particles are used in several applications like drug transfer and gene etc. due to nontoxic carriers. The gold core imparts stability in these systems. The monolayer tunes the surface properties like charge and hydro-phobicity. Gold Nano particles are widely used in various applications owing to their exclusive visual, chemical and biological properties. Surface Plasmon Resonance is the attractive features of gold Nano particles. Here using the gold Nano …
Published in Trends in Drug Delivery · Vol. 5, Issue 3, 2018 · pp. 31–34 Read article
-
Theoretical Study of Surface Waves in Hexagonal Boron Nitride (hBN)
Abstract: Hexagonal boron nitride (hBN) is a wide bandgap semiconductor material in which Boron (B) and Nitrogen (N) atoms form hexagonal structure and has number of robust properties of technological importance. Boron nitride nanotubes (BNNTs) are very nice area of research in recent years. Its structure is similar to carbon nanotubes (CNTs) where carbon atoms are arranged in hexagon. hBN is also known as White Graphene. Various methods are employed to …
Published in Research & Reviews : Journal of Physics · Vol. 13, Issue 1, 2024 Read article
-
Dispersion Analysis of Polypyrrole and ZnO Nanocomposite Thin Film using SPR Techniques
Abstract: The dispersion analysis of any material is crucial for studying its structure and composition. The interaction of the structure of the material with electromagnetic energy is also determined by studying its dielectric or optical properties. For studying dielectric properties, optical approaches are favored over electrical techniques, and Surface Plasmon Resonance (SPR) is the most suited of all techniques. It is used as a result to investigate the optical and dielectric …
Published in Journal of Polymer & Composites · Vol. 10, Issue 2, 2022 · pp. 79–85 Read article
-
Simulation of Electric Field Induced by Electromagnetic Radiation on Spherical Nanoparticles
Abstract: AbstractIn this article, the interaction of light and matter of nanoparticles is simulated for the electric field induced by electromagnetic radiation on spherical nanoparticles. The absorption, scattering and extinction efficiencies are demonstrated for initial wavelength of the incident of light from 300 nm to the final wavelength at 900 nm range for the silver material of 250 nm (spherical nanoparticles) radius with 1.0 refractive index. These optical properties vary according …
Published in Trends in Opto-electro & Optical Communication · Vol. 8, Issue 2, 2018 · pp. 20–24 Read article
-
Integrated Microfluidic Platform for Accelerated Catalytic Analysis: Enhancing Sensitivity and Efficiency
Abstract: In this study, we introduce a groundbreaking advancement in microfluidic technology tailored for catalytic and catalytic analysis. Our innovative microfluidic device integrates novel features aimed at augmenting sensitivity and accelerating analysis while ensuring reliability and user-friendliness. The hallmark of our device is the fusion of sample preparation and analysis functionalities within the microfluidic chip. By embedding sample preconcentration and purification modules, we achieve remarkable enhancements in sensitivity and detection limits. …
Published in Journal of Catalyst & Catalysis · Vol. 10, Issue 2, 2023 · pp. 51–27 Read article
-
Review on Photoconductive Antenna Design from Conventional to Microstructures
Abstract: Semiconductors possess many diverse phenomena under terahertz-frequency electromagnetic radiation (THz). This is due to the fact that the energy of THz photons is at quite large scales in case of bulk and low-dimensional materials and devices. With regard to broadband THz sources, various inorganic crystals such as ZnTe/GaP/GaAs/GaSe/DAST/LiNbO3 have been used which are pumped by femtosecond laser pulses. These pulses are combined with field-resolved detection through electro-optic sampling using similar …
Published in Journal of Microwave Engineering and Technologies · Vol. 9, Issue 1, 2022 · pp. 1–8 Read article