Communications in Physics
0886-3166
2815-5947
Việt Nam
FStER9AAAAAJ
Cơ quản chủ quản: N/A
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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
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...
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...
The VATLY Radio Telescope
Tập 22 Số 4 - 2012
A small radio telescope (SRT) has been installed on the roof of the Hanoi
astrophysics laboratory VATLY. It is equipped with a 2.6 m diameter mobile
parabolic dish remotely controlled in elevation and azimuth and with
super-heterodyne detection around the 21 cm hydrogen line. First results of
observations of the Sun and of the centre of the Milky Way are presented. They
demonstrate the high qualit...
Synthesis and Optical Properties of Colloidal Gold Nanoparticles for Biomedical Applications
Tập 21 Số 1 - 2011
The gold nanoparticle solutions are well known as an extremely sensitive
biomedical analytical tool due to the strong dependence of their absorption in
the visible range on the environment. In this work, the colloidal nano golds
were synthesized from metal precursor chloroauric acid (HAuCl4) using trisodium
citrate dehydrate (C6H5O7Na3) as reducing and stabilizing agents. The optical
characterizat...
#Colloidal gold #Nanoparticles #Absorption #Surface Plasmon Resonance - SPR}
Thermal Conductivity of Ethylene Glycol Based Copper Nanoparticle Decorated Graphene Nanofluids
Tập 26 Số 4 - Trang 351 - 2017
In this paper, thermal conductivity of ethylene glycol based copper nanoparticle
decorated graphene (Cu/Gr) nanofluids are successfully synthesized by a chemical
reduction tecnique using ascorbic acid antioxidant agent. Nano-sized copper
nanoparticles is decorated on functionalized graphene, and then dispersed
uniformly in ethylene glycol (EG) to make the nanofluids. Morphology, phase
composition ...
#graphene #copper decorated graphene #nanofluid #thermal conductivity
Study of Optimized Coupling Based on Micro-lensed Fibers for Fibers and Photonic Integrated Circuits in the Framework of Telecommunications and Sensing Applications
Tập 26 Số 4 - 2017
We demonstrate the interest of expanded beam microlenses (around 55 µm of mode
field diameter) to relax positioning tolerances and to decrease reflectance in
single mode fiber to fiber interconnexions. We also point out the interest of
micro-lenses of very small mode field diameter (around 2 µm) to improve coupling
efficiency in specialty fibers and integrated waveguides for non linear effects
ba...
#Optical interconnexions #fiber optics #integrated optics #microlenses