Publication Details:

Լույս է տեսնում 1966 թվականից՝ տարին 4 անգամ։

Journal or Publication Title:

ՀՀ ԳԱԱ Տեղեկագիր: Ֆիզիկա = Proceedings of the NAS RA: Physics

Date of publication:

2024

Volume:

59

Number:

4

ISSN:

0002-3035

Official URL:

Contributor(s):

Պատ․ խմբ․՝ Գ․ Մ․ Ղարիբյան (1966-1992) ; Գլխ․ խմբ․՝ Վ․ Մ․ Հարությունյան (1993-2021) ; Կ․ Մ․ Ղամբարյան (2022-)

Coverage:

465-467

Abstract:

The propagation characteristics of q-Gaussian laser beam in Cold Collisionless plasma are explored in current research work. In Cold Collisionless plasma, the carriers get redistributed away from axial portion due to ponderomotive force. This carrier redistribution leads to production of density gradients thereby causing self-focusing of beam. The Wentzel-Kramers-Brillouin and paraxial approximations are utilized for deriving nonlinear 2nd order differential equation for beam width of the beam. Since, this differential equation can’t be solved analytically. So, numerical solution has been obtained for exploring the variation of beam width of beam against normalized propagation distance. Impact of variation in established parameters of laser and plasma such as beam intensity, beam radius, density of plasma electrons, plasma temperature and qparameter on behavior of laser beam is also examined.

Format:

pdf

Identifier:

click here to follow the link ; oai:arar.sci.am:381763

Call number:

АЖ 415

Location of original object:

ՀՀ ԳԱԱ Հիմնարար գիտական գրադարան