PARABOLIC AND RECTANGULAR SELF-SIMILAR EVOLUTION IN SATURABLE MEDIA

被引：5
作者：
Bakirtas, Ilkay [1 ]
Antar, Nalan [1 ]
Horikis, Theodoros P. [2 ]
Frantzeskakis, Dimitrios J. [3 ]
机构：
[1] Istanbul Tech Univ, Dept Math Engn, TR-34469 Istanbul, Turkiye
[2] Univ Ioannina, Dept Math, Ioannina 45110, Greece
[3] Natl & Kapodistrian Univ Athens, Dept Phys, Athens 15784, Greece
来源：
ROMANIAN REPORTS IN PHYSICS | 2023年 / 75卷 / 04期
关键词：
self-similar evolution; pulse shaping; similaritons; DISPERSIVE DIELECTRIC FIBERS; NONLINEAR-OPTICAL PULSES; WAVE-BREAKING; TRANSMISSION; LASERS;
D O I：
10.59277/RomRepPhys.2023.75.118
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We numerically demonstrate the existence of parabolic and rectangular self-similar propagations of optical beams in saturable media. Rectangular selfsimilar evolution is achieved by imposing an external optical potential (lattice) that acts as a pulse shaping mechanism and it is shown that a rectangular shaped profile can be obtained by providing a delicate balance between the nonlinearity and saturation of the medium.
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页数：21
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