Волновые Функции И Собственные Значения Носителей Заряда В Нанотрубке В Окрестности Точки Дирака При Наличии Продольного Электрического Поля

Sadykov, N. R.

doi:10.4213/tmf8642

Cited by 4 publications

(3 citation statements)

References 33 publications

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“…This model almost coincides with the model used in [31,42]. In [40] as distinct from [39] the array of chiral nanotubes is viewed. In [35] A, B chains correspond to gA and gB chains from [43] when g is odd; if g is even, C and D from our paper chains correspond to gA and gB.…”

Section: B Narrow Nanoribbonssupporting

confidence: 57%

“…In [39] on account of an elementary phase cell, which contains sublattice A and sublattice B, the wave functions, equidistant energy levels and dipole matrix elements of laser transition in the presence of a longitudinal electric field are analytically obtained. In [40] as distinct from [39] the array of chiral nanotubes is viewed. We write the Liouville equation for the considered multilevel system for the density matrix…”

Section: A Nanotubesmentioning

confidence: 99%

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Terahertz Radiation Generation Process In The Medium Based On The Array of The Elongated Nanoparticles

Sadykov¹,

Pilipenko²,

Jolnirov³

2021

Preprint

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We conduct a theoretical study and numerical simulations of terahertz radiation generation in the medium based on armchair-edge nanoribbons and zigzag nanotubes with metallic conductivity. The multicascade mechanism of radiation generation is considered in the task of terahertz radiation generation. The level of the injection current in nanoparticle arrays has been estimated. The task expands to the similar medium where radiation current is generated with the use of infrared radiation stimulated absorption, for example, radiation of a CO2 laser. Numerical results for the effective dielectric function have been obtained with the use of the effective medium-approximation, the Maxwell-Garnett’s theory and the Maxwell-Garnett model with the Clausius-Mossotti correction (geometrical model arrays).

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Section: B Narrow Nanoribbonssupporting

confidence: 57%

Section: A Nanotubesmentioning

confidence: 99%

Terahertz Radiation Generation Process In The Medium Based On The Array of The Elongated Nanoparticles

Sadykov¹,

Pilipenko²,

Jolnirov³

2021

Preprint

View full text Add to dashboard Cite

show abstract

“…2 Theory 2.1 The polarization equation Sadykov and Skorkin (2013) and Sadykov (2014) showed that in the random metallic CNT energy levels are independent from the longitudinal electric field value [the case of zigzag CNT type is considered by Sadykov and Skorkin (2013)] if they meet the conditions ao 2ã =oz 2 ( oã=oz, ao 2b =oz 2 ( ob=oz forã andb coefficients at the atomic orbitals in the case of two-point elementary cell near Fermi surface…”

Section: Introductionmentioning

confidence: 99%

Terahertz radiation generation process in the medium based on the array of the noninteracting nanotubes

2016

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Consideration of periodically alternating arrays of noninteracting carbon nanotubes with the metal type of conductivity as elements of the quantum layer heterostructures (quantum wells), which will play the role of the active field, is suggested. From the earlier obtained results based on the models of the elementary cell, it follows that the system in the neighborhood of the Dirac points at the presence of the longitudinal electric field will have equidistant spectrum. The eigenvalues of the energies do not depending on the longitudinal electric field. The two-component eigenfunctions do not depend on the longitudinal electric field. The amplification of the generation terahertz radiation by the analogy with the cascade lasers in the multilevel medium, based on the system of the noninteracting metallic carbon, is considered. If concentration of the nanotubes is 10 7 cm -2 then the output power per unit area will be about Q $ n 0 k 0 hxJ k =e % 8 W=cm 2 . The wavelength of the terahertz radiation is 65 lm.

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Terahertz radiation generation process in the medium based on the array of the elongated nanoparticles

2021

View full text Add to dashboard Cite

We conduct a theoretical study and numerical simulations of terahertz radiation generation in the medium based on armchair-edge nanoribbons and zigzag nanotubes with metallic conductivity. The multicascade mechanism of radiation generation is considered in the task of terahertz radiation generation. The level of the injection current in nanoparticle arrays has been estimated. The task expands to the similar medium where radiation current is generated with the use of infrared radiation stimulated absorption, for example, radiation of a CO2 laser. Numerical results for the effective dielectric function have been obtained with the use of the effective mediumapproximation, the Maxwell-Garnett's theory and the Maxwell-Garnett model with the Clausius-Mossotti correction (geometrical model arrays).

show abstract

Волновые Функции И Собственные Значения Носителей Заряда В Нанотрубке В Окрестности Точки Дирака При Наличии Продольного Электрического Поля

Cited by 4 publications

References 33 publications

Terahertz Radiation Generation Process In The Medium Based On The Array of The Elongated Nanoparticles

Terahertz Radiation Generation Process In The Medium Based On The Array of The Elongated Nanoparticles

Terahertz radiation generation process in the medium based on the array of the noninteracting nanotubes

Terahertz radiation generation process in the medium based on the array of the elongated nanoparticles

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