BelNET logo

Электронный портал ядерных знаний Республики Беларусь

Belarusian Nuclear Education and Training Portal - BelNET

eng

rus

Материал портала ядерных знаний BelNET
статья/документ по запросу ресурса "5394"
Mathematical modelling of multiwave Volume Free Electron Laser (VFEL)
K. Batrakov, S. Sytova
2005-06-06
Presentation at the 10th International Conference "Mathematical Modelling and Analysis" MMA2005, June 1–5, 2005, Trakai, Lithuania
16 P.
This contribution is devoted to investigation by methods of mathematical modelling of multiwave Volume Free Electron Laser (VFEL). Our previous investigations were devoted to numerical modelling of VFEL with two-wave distributed feedback. Theoretical investigations show the great advantage of different multiwave diffraction geometries and in particular of three-wave diffraction geometry. Generation in multiwave distributed feedback geometry has many advantages including lasing in inaccessible for traditional schemes range of parameters.

In three-wave VFEL we consider three strong electromagnetic waves that are under diffraction conditions. There are three possible geometries in such a system. First: so-called Bragg-Bragg case, when one wave goes forward and two waves go in the opposite direction. Second: Bragg-Laue case, when two waves go forward and one wave goes in the opposite direction. And in the last case, so-called Laue geometry, all three waves spread in one direction. Accordingly to this, we have to write out boundary conditions on different boundaries of the system and use right or left finite difference derivatives in accordance with wave spread directions.

System of equations and boundary conditions for common case of n-wave coplanar distributed feedback geometry were formulated and are discussed too.

Загрузить:
MMA2005.jpg131926image/jpeg2024-08-28 17:11:48
MMA2005.pdf1525542application/pdf2024-08-28 17:47:12
Вход, регистрация