EXTREMELY SHORT OPTICAL PULSES IN A MEDIUM
OF ORIENTED CARBON NANOTUBES WITH NONLINEARITIES
OF ORDERS 3 AND 5
Ilya S. Dvuzhilov
Candidate of Sciences (Physics and Mathematics), Associate Professor,
Department of Forensic Examination and Physical Materials Science,
Volgograd State University
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Prosp. Universitetsky, 100, 400062 Volgograd, Russian Federation
Yulia V. Dvuzhilova
Candidate of Sciences (Physics and Mathematics), Associate Professor,
Department of Forensic Examination and Physical Materials Science,
Volgograd State University
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Prosp. Universitetsky, 100, 400062 Volgograd, Russian Federation
Mikhail B. Belonenko
Doctor of Sciences (Physics and Mathematics), Professor,
Department of Forensic Examination and Physical Materials Science,
Volgograd State University
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Prosp. Universitetsky, 100, 400062 Volgograd, Russian Federation
Abstract. In the work, a theoretical study was carried out as well as numerical simulation of the interaction of three-dimensional extremely short pulses with an inhomogeneous array of oriented semiconductor carbon nanotubes, with polarization nonlinearities of 3 and 5 orders. The results of the temporal evolution of such pulses and the dependence of the pulse strength on the parameters of the inhomogeneity of an array of oriented nanotubes are shown. Extremely short pulses (ESP), in this case, mean optical pulses of high intensity, containing one to five periods of the electromagnetic field, with a duration of up to 100 ps. The pulse frequency lies in the near-infrared range. A necessary condition for the stable propagation of extremely short pulses is the presence of nonlinear effects that would make it possible to compensate for their dispersion and diffraction spreading. Therefore, an array of oriented carbon nanotubes (CNTs), which have nonlinear properties, was chosen as the pulse propagation medium. The use of nonlinear optical media can be used to create coherent radiation sources, light sources with variable frequency, etc.
Key words: extremely short optical pulses, carbon nanotubes, nonlinear optics, Maxwell’s equations.
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