کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1534403 1512585 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Gaussian-type light bullets in power-law nonlinear media with PT-symmetricPT-symmetric potentials
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Gaussian-type light bullets in power-law nonlinear media with PT-symmetricPT-symmetric potentials
چکیده انگلیسی

The (3+1)-dimensional nonlinear Schrödinger equation with power-law nonlinearities in two kinds of PT-symmetricPT-symmetric potentials is investigated, and two kinds of Gaussian-type light bullet (LB) solutions are analytically derived. Based on these analytical solutions, the powers, power-flow densities and the phase switches are discussed. The linear stability analysis and the direct numerical simulation show that LB solutions are stable only when the imaginary parts of PT-symmetricPT-symmetric potentials are below some thresholds in the focusing power-law nonlinear media, while they are always unstable in the defocusing power-law nonlinear media.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 338, 1 March 2015, Pages 393–398
نویسندگان
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