Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Davod Nobahar"'
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
Abstract This paper is devoted to the study of vortex beam transmission from an adjustable magnetized plasma-ferrite structure with negative refraction index. We use the angular spectral expansion technique together with the $$4\times 4$$ 4 × 4 matr
Externí odkaz:
https://doaj.org/article/80d351dbecdc48488cca1d61f64b7c20
Autor:
Davod Nobahar, Sirous Khorram
Publikováno v:
Waves in Random and Complex Media. :1-13
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
Scientific Reports
Scientific Reports
This paper is devoted to the study of vortex beam transmission from an adjustable magnetized plasma-ferrite structure with negative refraction index. We use the angular spectral expansion technique together with the $$4\times 4$$ 4 × 4 matrix method
Publikováno v:
Optics & Laser Technology. 159:108911
Publikováno v:
Optics & Laser Technology. 117:165-168
In the present paper, the inverse bremsstrahlung absorption of vortex laser beam (VLB) propagating in a collisional plasma is investigated. For this purpose, the Maxwell and the plasma hydrodynamic equations are employed to obtain the electromagnetic
Autor:
Hamid Reza Pakzad, Davod Nobahar
Publikováno v:
New Astronomy. 93:101752
Autor:
Sirous Khorram, Davod Nobahar
Publikováno v:
Optics & Laser Technology. 146:107522
Interaction of vortex beams with materials has proven to be a key for controlling and exploiting theirs properties. In this paper, we propose an adjustable stratified structure constructed from plasma and ferrite layers, which greatly manipulates the
Publikováno v:
Indian Journal of Physics. 92:1169-1176
Ion-acoustic (IA) waves carrying orbital angular momentum (OAM) are investigated in an unmagnetized, uniform, and collisionless electron–positron–ion (e–p–i) plasma system. Employing the hydrodynamic theory, the paraxial equation in term of i
Publikováno v:
Laser and Particle Beams. 35:543-550
In this paper, the instability of electrostatic twisted modes carrying orbital angular momentum in the moving electron–positron–ion plasma is investigated. In the kinetic theory approach, the general dispersion relation of twisted modes is derive
Autor:
Davod Nobahar, Hamid Reza Pakzad
Publikováno v:
Physica Scripta. 95:095603