Waveguide submillimetre laser with a uniform output beam

Volodenko, A.V.; Gurin, O. V.; Degtyarev, A. V.; Maslov, V. A.; Svich, V. A.; Topkov, A. N.

doi:10.1070/qe2007v037n01abeh013295

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…This is due to the fact that, to achieve an optimum result in solving many technological problems, one often has to use the super-Gaussian laser-radiation-field-intensity distribution close to the homogeneous distribution (see, e.g., [24][25][26]). Figures 1-3 present typical results of modeling the laser-radiation propagation (monochromatic wave with frequency ω) in an array of chains of quantum dots with the parameters indicated in the previous section.…”

Section: Results Of Numerical Modelingmentioning

confidence: 99%

Nonlinear diffraction of super-gaussian laser beams in an array of quantum-dot chains with coulomb interaction taken into account

Белоненко

Fedorov

2012

J Russ Laser Res

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We consider the propagation of super-Gaussian monochromatic laser beams in a three-dimensional array of quantum dots coupled by the tunneling effect along one axis. The electron energy spectrum of the system corresponds to the Hubbard model, where the Coulomb interaction of electrons in quantum dots is taken into account. The field of the laser beam is described by the Maxwell equations, from which a nonhomogeneous wave equation for the vector potential is obtained. In the approximation of slowly varying amplitudes and phases, the wave equation is reduced to a phenomenological equation describing the electromagnetic field in an array of chains of quantum dots. We study the influence of the system parameters and the frequency of the laser-beam field on the propagation in the medium by solving numerically the phenomenological equation. We obtain the dependence of the factor characterizing the diffraction blooming of the beam in an array of chains of quantum dots on the parameters of the system's electron energy spectrum.

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Section: Results Of Numerical Modelingmentioning

confidence: 99%

Nonlinear diffraction of super-gaussian laser beams in an array of quantum-dot chains with coulomb interaction taken into account

Белоненко

Fedorov

2012

J Russ Laser Res

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Waveguide CO₂laser with a quasi-homogeneous distribution of the output radiation intensity

Vlasenko¹,

Gurin²,

Degtyarev³

et al. 2013

Quantum Electron.

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Formation of beams with nonuniform polarisation of radiation in a cw waveguide terahertz laser

Gurin¹,

Degtyarev²,

Dubinin³

et al. 2021

Quantum Electron.

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A method for obtaining non-Gaussian light beams with azimuthal field polarisation in a waveguide quasi-optical cavity is described. The method is based on the employment of polarisation-selective diffraction structures as laser mirrors. Efficient excitation of such beams at the output from an optically pumped waveguide HCOOH laser (λ = 0.4326 mm) with an inhomogeneous reflecting input and semitransparent output mirrors is confirmed theoretically and experimentally.

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Waveguide submillimetre laser with a uniform output beam

Cited by 3 publications

References 3 publications

Nonlinear diffraction of super-gaussian laser beams in an array of quantum-dot chains with coulomb interaction taken into account

Nonlinear diffraction of super-gaussian laser beams in an array of quantum-dot chains with coulomb interaction taken into account

Waveguide CO₂laser with a quasi-homogeneous distribution of the output radiation intensity

Formation of beams with nonuniform polarisation of radiation in a cw waveguide terahertz laser

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Waveguide submillimetre laser with a uniform output beam

Cited by 3 publications

References 3 publications

Nonlinear diffraction of super-gaussian laser beams in an array of quantum-dot chains with coulomb interaction taken into account

Nonlinear diffraction of super-gaussian laser beams in an array of quantum-dot chains with coulomb interaction taken into account

Waveguide CO2laser with a quasi-homogeneous distribution of the output radiation intensity

Formation of beams with nonuniform polarisation of radiation in a cw waveguide terahertz laser

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Waveguide CO₂laser with a quasi-homogeneous distribution of the output radiation intensity