Zeolitic imidazolate framework (ZIF) is a new class of metal organic framework (MOF) with imidazolate ligands as linkers and metal ions as metal centers. A bismuth zeolitic imidazolate framework (Bi-ZIF) was prepared by laser ablation in liquid environment as a physical bottom-up method for the first time. The samples were characterized by Fourier transform infrared […]
In this paper, the role of physical constants in the definition of Planck mass is reviewed. The hidden concepts of Planck base units are then examined in three quantities: Planck length, Planck time or Planck frequency, and Planck mass. In an extension, a new combination of physical constants reveals the hidden nature behind the definition […]
In this paper, we study the quantum dynamic of the Klein-Gordon particles/antiparticles with generalized Deng-Fan potential. We determine the energy spectra and the corresponding wave function expressed in terms of confluent Heun function using the extended Nikiforov Uvarov method. The influence of the potential parameters on the energy spectra is discussed in details.
The manuscript is about the head-on collision of two dust-ion acoustic solitary waves (DIAS waves) in dusty plasma including inertial ions, negatively charged stationary dust particles and nonextensive electrons. For this purpose, using the extended Poincaré–Lighthill–Kuo (PLK) approach, two Kortwege–de Vries equations with solitonic solutions are derived and then phase shifts of DIAS waves after […]
Given the major applications of optical random laser in the next generation devices, tissue imaging is proposed in this article by the aid of plasmonic random laser media. For this purpose, we use Rhodamine 6G as the main gain medium and fill it by Gold nanoparticles, Graphene and the mixture of them as random laser […]
We present a new theoretical model for analyzing the impact of higher order modes on transverse mode instability in bent Yb-doped fiber amplifiers. The model indicates a comparative analysis of mode instability using the normalized propagation constant in both straight and bent fibers amplifiers. The impact of different bending radii, on bent fibers is investigated […]
A problem of Raman backscattering of laser beam propagating in a transversely wiggler magnetized plasma is considered in the presence of density ripples. Required dispersion relation of excited upper hybrid wave is derived by using the fluid model and taking into account the coupling between primary upper hybrid wave and density ripples. Using wave equation […]
Zirconium carbide (ZrC) is promising candidate materials in advanced nuclear reactors as fuel cladding and plasma facing materials. It can employ to increase ductility and fracture toughness of tungsten as prominent candidate of plasma facing materials in ITER and DEMO future fusion reactors. In this study, ZrC thin films were deposited through DC magnetron sputtering […]
We present the results of experimental studies of the barrier negative corona of constant voltage excited by a metal tip over a metal plane covered by a thin film of polytetrafluoroethylene. It is shown that bright surface discharges – streamers – form on the dielectric surface as the voltage increases. The change in the surface […]
Cadmium selenide films were prepared at different volumes of dopant (Europium) concentration by electrostaticspray-pyrolysis technique. Optical results reveal low absorption and reflection with a corresponding high transmission in the visible region. Strong blue-shift is observed for the band gap energy in all cases of growth, indicating quantum confinement effect. Scanning electron studies reveal relatively smooth […]
