A. G. Ghazaryan, N. O. Arustamyan, G. H. Chopuryan, Kh. V. Sedrakyan
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Elliptically Polarized High Laser Harmonics in the Hexagonal Graphene Quantum Dot
In this paper, we studied the transformation of light in a hexagonal graphene quantum dot during the generation of high harmonics in an intense laser field. A linearly polarized laser field leads to intense emission of elliptically polarized harmonics. The ellipticity and orientation of the polarization ellipse are derived from the Stokes parameters calculated, considering various polarization components. Numerical results show that the ellipticity of harmonics generated in a quantum dot can be easily tuned by changing the tilt angle of a linearly polarized laser pulse without complex control systems.
期刊介绍:
Journal of Contemporary Physics (Armenian Academy of Sciences) is a journal that covers all fields of modern physics. It publishes significant contributions in such areas of theoretical and applied science as interaction of elementary particles at superhigh energies, elementary particle physics, charged particle interactions with matter, physics of semiconductors and semiconductor devices, physics of condensed matter, radiophysics and radioelectronics, optics and quantum electronics, quantum size effects, nanophysics, sensorics, and superconductivity.