A5084200231- Nanoparticles: synthesis and applications
- Laser-Matter Interactions and Applications
- Advanced Chemical Physics Studies
- Atomic and Molecular Physics
- Gold and Silver Nanoparticles Synthesis and Applications
- Ionosphere and magnetosphere dynamics
- Spectroscopy and Quantum Chemical Studies
- Dust and Plasma Wave Phenomena
- Nanomaterials for catalytic reactions
- Advanced Nanomaterials in Catalysis
- Laser-Ablation Synthesis of Nanoparticles
- Quantum optics and atomic interactions
- Mass Spectrometry Techniques and Applications
- Laser-induced spectroscopy and plasma
- High-pressure geophysics and materials
- Astro and Planetary Science
- Medicinal Plants and Neuroprotection
- Earthquake Detection and Analysis
- Photocathodes and Microchannel Plates
- Plasma Diagnostics and Applications
- Terahertz technology and applications
- Magnetic confinement fusion research
- Advanced Fiber Laser Technologies
- Advanced Photocatalysis Techniques
- Laser Design and Applications
Shenzhen University
2022-2023
Institute of Theoretical Physics
2019-2020
Chinese Academy of Sciences
2019-2020
University of Chinese Academy of Sciences
2020
University of Peshawar
2015-2016
Beijing University of Chemical Technology
2016
Gomal University
2016
Abdus Salam Centre for Physics
2016
In the present work AuNPs were synthesized by an eco-friendly, fast, one-pot and green synthetic route using Longan fruit juice as a reducing, capping stabilizing agent.
Silver nanoparticles are synthesized by an eco-friendly protocol using Litchi chinensis fruit juice as a reducing and capping agent. UV-vis spectroscopy (SPR band around 447 nm), XRD (crystallinity), HRTEM (size morphology), EDS (elemental composition) FTIR (surface functionalities) were used to characterize silver nanoparticles. They highly dispersed, mostly spherical with average size of 10 nm. The prepared exhibited rapid reduction 4-nitro phenol 4-amino (K = 0.09/min) photodegradation...
The Present Bio-synthesis is an efficient, fast, cheap, nontoxic, simple and eco-friendly protocol for silver nanoparticles synthesis, which more beneficial than commonly used physiochemical methods. Here in are biosynthesized using Citrus sinensis var. Kozan yerly fruit juice as reducing stabilizing agent. X-ray diffraction (XRD) pattern confirms the crystalline nature of nanoparticles. high resolution transmission electron microscopy confirmed that ere average 4-10 nm particle size. UV-vis...
A new technique for the measurement of dissociative-recombination cross section functions using an ion-trap apparatus has been applied to recombination H2+ and H3+ in energy range 0.3-1.0 eV. The dependence is measured be E-1.15 E-0.74 e-H2+ e-H3+ collisions, respectively. Good agreement obtained with results from earlier experiments utilising inclined electron ion beams.
Collision processes of electrons with trapped ions mass numbers 1, 2, 3, 5, 7, 10, 14 and 20 are investigated in the concentric electron-beam device. Trapping characteristics measured lead to conclusion that all trap hydrogenic. Cross section functions for electron impact dissociation H2+, H3+ H5+ measured. The shape H2+ indicates molecular a sufficiently long time vibrational decay upsilon =0 occur. There is good agreement between present low energy data previous work. Dissociation cross...
Abstract The angular distributions of the photoelectrons in ionization hydrogen atom by both circularly and linearly polarized intense extreme ultraviolet (XUV) attosecond pulse are investigated numerically solving time-dependent Schrödinger equation. We clearly identify nonperturbative features studying asymmetrical photoelectron polarization plane for XUV photon energy (16.3 eV) close to threshold, while such absent higher (36 same intensity region. In addition carrier-envelope phase (CEP)...
Abstract The nonlinear properties of two dimensional low‐frequency electrostatic excitations charged dust particles (or defects) are studied in a collisionless, unmagnetized dusty plasma. A fully ionized three‐component model plasma consisting kappa distributed electrons, Maxwellian ions, and negatively massive grains is considered. In this regard, the well known reductive perturbation technique used to hydrodynamical equations Poisson equation, obtaining cylindrical Kadomtsev–Petviashvili...
Abstract We numerically investigate both the streaking time delay and oscillation amplitude of momentum shift photoelectron justify them physically by developing a classical model based on weak field approximation. The is insensitive to extreme ultraviolet (XUV) pulse duration, while obviously reduces as XUV duration increases. This dependence attributed ionization probability electron at initial times other than peak pulse. propagate trajectories originating different in coupled...
We develop a numerical scheme for solving the one-dimensional (1D) time-dependent Schrödinger equation (TDSE), and use it to study strong-field photoionization of atomic hydrogen. The photoelectron energy spectra obtained pulses ranging from XUV near infrared are compared in detail calculated with our well-developed code accurately three-dimensional (3D) TDSE. For pulses, discussions cover intensities at which ionization is perturbative nonperturbative regimes. 400 nm or longer wavelengths,...
In the photodetachment of atoms or negative ions by a double-pulse laser, first pulse laser generates waves and delayed second may detect them. The phenomenon excitation detection can be used to identify closed orbits in system. We demonstrate this with hydrogen ion (H−) analyzing total population excited time-dependent field for different physical parameters. By using we uncover all existing that realized scanning position time delay between two pulses.