najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМОnajo-1146Research ArticlePHYSICSФИЗИКАFew cycle pulses in the Bragg medium containing carbon nanotubesBelonenkoM. B.

Volgograd

mbelonenko@yandex.ruNevzorovaJu. V.nevzorkina@yandex.ruGalkinaE. MN.

Volgograd

Volgograd State University; Volgograd Institute of BusinessRussian FederationVolgograd State UniversityRussian FederationVolgograd Institute of BusinessRussian Federation20141808202555644649Copyright © Belonenko M.B., Nevzorova J.V., Galkina E.M., 20252025Belonenko M.B., Nevzorova J.V., Galkina E.M.Belonenko M.B., Nevzorova J.V., Galkina E.M.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/1146

One of the basic problems of modern optics is medium creation, thanks to which, we can process and control a signal. Among such media, the Bragg media (in which the refractive index is periodically spatially-modulated) is of great interest [1–3]. As much as the medium has a periodically variable refractive index, the light pulse propagates more slowly in it, than in a medium with any fixed refractive index. This makes it possible to construct optical delay lines based on such media, which are useful for femtosecond spectroscopy for example. Such behavior can be understood in essence, providing that the light pulse is reflected and then interferes at the interface of media with different refractive indices. Additional introduction of nonlinearity into that sort of media leads to qualitatively new effects [4–6]. Particularly, Bragg solitons can be formed in such systems. They are revealed as a specified counter assembly of waves, banded in such a manner to move collectively with reduced speed. At the same time, rising interest in carbon nanotube (CNT) physics and particularly heightened attention to the study of CNT nonlinear properties leads to the conclusion that carbon nanotubes, with their characteristic nonlinear optical properties, can be non-conventional material for the nonlinear Bragg media formation [7–9]. Note that carbon nanotube usage perspectives in nonlinear optics in particular for optical bullet formation have been mentioned in some research accounts. All the above-mentioned facts gave impetus for this investigation.

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The authors declare that there are no conflicts of interest present.