Analysis of stable self-trapping of laser beams in cubic-quintic nonlinear media

• A numerical and analytical analysis of two-dimensional laser beam propagation in cubic-quintic nonlinear optical media demonstrates the existence of stable stationary radially symmetric modes. By means of a variational method, involving super-Gaussian trial functions and Ritz optimization, approximate stationary solutions are obtained, showing very good agreement with numerical results, even in the strongly non-linear, almost saturated, regime. The stability of the stationary modes are verified by analytical analysis and by direct numerical simulations. 

Subject headings

NATURVETENSKAP  -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)

Keyword

Cubic-quintic nonlinear media

Generalized nonlinear Schrödinger equation

Nonlinear optics

Self-trapping

Gaussian beams

Laser beams

Light propagation

Nonlinear analysis

Nonlinear equations

Nonlinear systems

Numerical methods

Analytical analysis

Dinger equation

Nonlinear optical media

Radially symmetric

Self trapping

Stationary solutions

Variational methods

Publication and Content Type

ref (subject category)

art (subject category)