Variational approach to spatial optical solitons in bulk cubic-quintic media stabilized by self-induced multiphoton ionization.
Propagation of an optical high-power cylindrically symmetric beam in a material characterized by cubic-quintic nonlinearity is studied both analytically and numerically. In this case we have to consider the self-defocusing effect caused by the presence of free electrons produced due to plasma formation. The variational method is used to study the system analytically. The finite-difference beam propagation method is used for the numerical analysis. Stable (2+1) D spatial solitons are observed. The analytical results are found to be in very good agreement with the numerical results.
Jisha
C P
CP
Department of Physics, Cochin University of Science and Technology, Cochin 682022, India. jisha@cusat.ac.in
Kuriakose
V C
VC
Porsezian
K
K