Open AccessVariational investigation of Hermite-Gaussian beam propagation in nonlocal Kerr media
Author(s) -
Bai Dong-feng,
Qi Guo,
Hu Wei
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.5684
Subject(s) - quantum nonlocality , hermite polynomials , physics , gaussian , nonlinear system , power series , series (stratigraphy) , taylor series , beam (structure) , classical mechanics , mathematical analysis , quantum mechanics , mathematics , optics , quantum , paleontology , quantum entanglement , biology
The reduced Lagrange density of nonlocal nonlinear Schrdinger equation(NNLSE) is obtained by expanding the real symmetric response function in Taylor’s series in strongly nonlocal Kerr media. The problem of higher-order beam propagation can be analyzed by a variational approach, the equations are obtained for the evolution during propagation of the parameters of the trial solution and exact analytical Hermite-Gaussian(HG) solutions are found. HG solitons are formed when the input power is equal to the critical power. We demonstrated that the analytical HG solutions are in good agreement with the numerical simulations in the case of strong nonlocality.