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- W2287991207 abstract "The creation of stable 1D and 2D localized modes in lossy nonlinear media is a fundamental problem in optics and plasmonics. This article gives a short review of theoretical methods elaborated for this purpose, using localized gain applied at one or several hot spots (HSs). The introduction surveys a broad class of models for which this approach was developed. Other sections focus in some detail on basic 1D continuous and discrete systems, where the results can be obtained, partly or fully, in an analytical form (verified by comparison with numerical results), which provides a deeper insight into the nonlinear dynamics of optical beams in dissipative nonlinear media. In particular, considered are the single and double HSs in the usual waveguide with the self-focusing (SF) or self-defocusing (SDF) Kerr nonlinearity, which give rise to rather sophisticated results, in spite of apparent simplicity of the model; solitons attached to a PT-symmetric dipole embedded into the SF or SDF medium; gap solitons pinned to an HS in a Bragg grating; and discrete solitons in a 1D lattice with a hot site." @default.
- W2287991207 created "2016-06-24" @default.
- W2287991207 creator A5090892882 @default.
- W2287991207 date "2014-08-15" @default.
- W2287991207 modified "2023-09-27" @default.
- W2287991207 title "Mini-review: Spatial solitons supported by localized gain" @default.
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