Communications in Physics
0886-3166
2815-5947
Việt Nam
FStER9AAAAAJ
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Các bài báo tiêu biểu
Preparation of SERS Substrates for the Detection of Organic Molecules at Low Concentration
Tập 26 Số 3 - 2017
In this paper, we present the results of the preparation of Surface Enhanced
Raman Spectroscopy (SERS) substrates by depositing silver nanoparticles (Ag NPs)
onto a porous silicon wafer that is produced by the chemical etching process.
The influences of the preparation parameters such as resistivity of the silicon
wafer, the anodizing current density, etching time to the size of pores were
systema...
#SERS #chemical etching #Raman #malachite green
Controllable Optical Properties of Multiple Electromagnetically Induced Transparency in Gaseous Atomic Media
Tập 29 Số 1 - 2019
The advent of electromagnetically induced transparency (EIT) offered a new
coherent material with exotic and controllable optical properties. Although,
studies on single-EIT are described in detail for single-EIT, however, extension
from single- to multi- EIT is currently of current interest due to it gains
advantages in multi-channel optical communication, waveguides for optical signal
processing...
#Electromagnetically Induced Transparency
Hydrothermal Synthesis and Optical Properties of Undoped and \(\text{Eu}^{3+}\)-doped Zinc Stannate Nanocrystals
Tập 25 Số 4 - 2016
Abstract. In this work we report a hydrothermal approach for synthesis of zinc
stannate (Zn2SnO4)nanocrystals. Our research focused on the effect of the molar
ratio of initial chemicals, reaction temperature and reaction duration on the
phase composition and the fluorescence properties.Structural and optical
properties of the final products were investigated in detail. X-ray
diffractionanalysis in...
Tungsten Oxide Nanoplates: Facile Synthesis, Controllable Oxygen Deficiency and Photocatalytic Activity
Tập 30 Số 4 - 2020
Monoclinic tungsten oxide (WO3) nanoplates were synthesized via a two-step
simple process: acid precipitation at room temperature to prepare WO3.H2O
nanoplates and annealing at high temperature (400 and 500 oC) in ambient air to
obtain WO3 nanoplates. The effect of annealing temperature on physical
properties (morphology, oxygen deficiency, crystallinity, optical properties,
and photocatalytic act...
#tungsten oxide nanoplate #acid precipitation #optical bandgap #photocatalyst #oxygen deficiency
Enhancing the doubly-longitudinal polarization in WZ production at the LHC
Tập 33 Số 3 - 2023
We present new results for the theoretical prediction of doubly-polarized cross
sections of $WZ$ events at the LHC using leptonic decays. Compared to the
previous studies, two new kinematic cuts are considered. These cuts are designed
to enhance the doubly-longitudinal (LL) polarization and, at the same time,
study the Radiation Amplitude Zero effect. We found a new cut on the rapidity
separation ...
Equivalence Between Vector Meson Dominance and Unitarised Chiral Perturbation Theory
Tập 24 Số 4 - 2015
It is explicitly shown that either the approximate solution of the integral
equation for the inverse of the pion form facto,r or the result of the
Pad\(\text{\'e}\) approximant method of resumming the one loop Chiral
Perturbation Theory (CPTH) are equivalent to the standard vector meson dominance
(VMD) models, using the vector meson coupling to two pseudoscalars given by the
KSRF relation. Inconsi...
A Low Cost Microwave Synthesis Method for Preparation of Gold Nanoparticles
Tập 24 Số 2 - 2014
The gold nanoparticles (GNPs) in 15-20 nm size range have attracted attention
for fabrication of smart sensing devices in biomedical sciences as diagnostic
tools. Citrate capped GNPs are negatively charged, which can be exploited for
electrostatic interactions with some positively charged biomolecules like
antibody. In this study, we are developing a low-cost technique by using a
common microwave ...
#gold nanoparticles #particles size and distribution #microwave synthesis #nanostructures
Anomalous Magnetic Dipole Moment \((g-2)\mu\) in 3-3-1 Model with Inverse Seesaw Neutrinos
Tập 30 Số 3 - 2020
We will show that the recent experimental value of the anomalous magnetic
moment (AMM) of the charged lepton m , denoted as \(a_mu (g-2)\mu/2\), can be
explained successfully in a 3-3-1 model with right handed neutrino adding new
heavy \(SU (3)_L\) neutrinos singlets. Allowed regions satisfying the recent AMM
data are illustrated numerically.
#3-3-1 model #inverse seessaw #anomalous magnetic dipole moment
Binding Energy of Exciton in Quantum Dots with the Central-cell Correction Depending on the Dot Sizes
Tập 31 Số 2 - 2007
The binding energy of exciton in quantum dots with a parabolic confinement
potential was calculated by variational methods beyond the Kohn-Luttinger
effective mass theory, when the central-cell correction was taken into
account.We have assumed that a short range potential with two parameters for
strength and range for exciton, representing the center-cell effect also depends
on dot size. Our resul...
Was the Higgs Boson Discovered?
Tập 25 Số 1 - 2015
The standard model has postulated the existence of a scalar boson, named the
Higgs boson (or the Brout-Englert-Higgs boson, for more complete). This boson
plays a central role in a symmetry breaking scheme called the Higgs mechanism
making the standard model realistic. However, until recently at least, the
50-year-long-sought Higgs boson had remained the only particle in the standard
model not yet...