scholarly journals Generation of unipolar pulses from nonunipolar optical pulses in a nonlinear medium

2011 ◽  
Vol 84 (2) ◽  
Author(s):  
Victor V. Kozlov ◽  
Nikolay N. Rosanov ◽  
Costantino De Angelis ◽  
Stefan Wabnitz
Keyword(s):  
Nonlinear Medium ◽  
Optical Pulses

scholarly journals Световые пули с бесселевым поперечным сечением в среде углеродных нанотрубок

2022 ◽  
Vol 130 (3) ◽  
pp. 407
Author(s):  
А.М. Белоненко ◽  
И.С. Двужилов ◽  
Ю.В. Двужилова ◽  
М.Б. Белоненко
Keyword(s):  
Carbon Nanotubes ◽  
Key Words ◽  
Cross Section ◽  
Nonlinear Medium ◽  
Three Dimensional ◽  
Optical Pulses ◽  
Limited Region ◽  
Conservation Of Energy ◽  
Light Bullets ◽  
Extremely Short Optical Pulses

The propagation of three-dimensional extremely short optical pulses (light bullets) with a Bessel cross section in a medium of carbon nanotubes placed in an optical resonator is considered. As a result of numerical calculations, it was found that such pulses propagate stably with conservation of energy in a limited region of space, including at large times of the order of 100 ps. Key words: extremely short optical pulses, nonlinear medium, light bullets, carbon nanotubes.

scholarly journals Conversion of short optical pulses to terahertz radiation in a nonlinear medium: Experiment and theory

2007 ◽  
Vol 76 (23) ◽  
Author(s):  
N. N. Zinov’ev ◽  
A. S. Nikoghosyan ◽  
R. A. Dudley ◽  
J. M. Chamberlain
Keyword(s):  
Terahertz Radiation ◽  
Nonlinear Medium ◽  
Optical Pulses

Three-dimensional few cycle optical pulses in nonlinear medium with carbon nanotubes

2016 ◽  
Vol 30 (28) ◽  
pp. 1650345
Author(s):  
Mikhail B. Belonenko ◽  
Ilya S. Dvuzhilov ◽  
Elena N. Galkina ◽  
Yulia V. Nevzorova
Keyword(s):  
Carbon Nanotubes ◽  
Nonlinear Medium ◽  
Optical Pulse ◽  
Three Dimensional ◽  
Theoretical Problem ◽  
Optical Pulses ◽  
Light Bullet ◽  
Propagation Dynamics

The theoretical problem of three-dimensional few cycle optical pulse (known as light bullet) propagation dynamics was considered in nonlinear medium containing carbon nanotubes. The stable and persistent propagation of optical pulses were found out.

Fock states generation in a kicked cavity with a nonlinear medium

1997 ◽  
Vol 44 (11-12) ◽  
pp. 2105-2123 ◽  
Author(s):  
W. Leoński ◽  
S. Dyrting ◽  
R. Tanaś
Keyword(s):  
Nonlinear Medium ◽  
Fock States

Composite right/left-handed transmission line with array of thermocouples for generating terahertz radiation

2020 ◽  
Vol 92 (2) ◽  
pp. 20502
Author(s):  
Behrokh Beiranvand ◽  
Alexander S. Sobolev ◽  
Anton V. Kudryashov
Keyword(s):  
Transmission Line ◽  
Terahertz Radiation ◽  
Transmission Lines ◽  
Software Package ◽  
Optical Pulses ◽  
Capacitively Coupled ◽  
Voltage Difference ◽  
Left Handed ◽  
Microwave Transmission ◽  
Commercial Software Package

We present a new concept of the thermoelectric structure that generates microwave and terahertz signals when illuminated by femtosecond optical pulses. The structure consists of a series array of capacitively coupled thermocouples. The array acts as a hybrid type microwave transmission line with anomalous dispersion and phase velocity higher than the velocity of light. This allows for adding up the responces from all the thermocouples in phase. The array is easily integrable with microstrip transmission lines. Dispersion curves obtained from both the lumped network scheme and numerical simulations are presented. The connection of the thermocouples is a composite right/left-handed transmission line, which can receive terahertz radiation from the transmission line ports. The radiation of the photon to the surface of the thermocouple structure causes a voltage difference with the bandwidth of terahertz. We examined a lossy composite right/left-handed transmission line to extract the circuit elements. The calculated properties of the design are extracted by employing commercial software package CST STUDIO SUITE.

2D Few Cycle Optical Pulses in Silicene in the Presence of External Electric Field

2017 ◽  
Vol 9 (3) ◽  
pp. 03044-1-03044-3
Author(s):  
M. B. Belonenko ◽  
◽  
N. N. Konobeeva ◽  
Keyword(s):  
Electric Field ◽  
External Electric Field ◽  
Optical Pulses

Ultrashort pulses propagation through different approaches of the Split-Step Fourier method

2018 ◽  
Vol 1 (3) ◽  
pp. 2
Author(s):  
José Stênio De Negreiros Júnior ◽  
Daniel Do Nascimento e Sá Cavalcante ◽  
Jermana Lopes de Moraes ◽  
Lucas Rodrigues Marcelino ◽  
Francisco Tadeu De Carvalho Belchior Magalhães ◽  
...  
Keyword(s):  
Energy Conservation ◽  
Optical Pulse ◽  
Time Window ◽  
Fourier Method ◽  
Ultrashort Pulses ◽  
Nonlinear Effects ◽  
Single Mode ◽  
Time Algorithm ◽  
Optical Pulses ◽  
Running Time

Simulating the propagation of optical pulses in a single mode optical fiber is of fundamental importance for studying the several effects that may occur within such medium when it is under some linear and nonlinear effects. In this work, we simulate it by implementing the nonlinear Schrödinger equation using the Split-Step Fourier method in some of its approaches. Then, we compare their running time, algorithm complexity and accuracy regarding energy conservation of the optical pulse. We note that the method is simple to implement and presents good results of energy conservation, besides low temporal cost. We observe a greater precision for the symmetrized approach, although its running time can be up to 126% higher than the other approaches, depending on the parameters set. We conclude that the time window must be adjusted for each length of propagation in the fiber, so that the error regarding energy conservation during propagation can be reduced.

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