Volume 5, Issue 1, June 2019, Page: 16-23
Light Dispersion in Diamond-like Crystals
Vladimir Rumyantsev, Department of Theory of Complex Systems Dynamic Properties, A. A. Galkin Institute for Physics & Engineering, Donetsk, Ukraine; Mediterranean Institute of Fundamental Physics, Rome, Italy
Received: May 2, 2019;       Accepted: Jun. 3, 2019;       Published: Jun. 18, 2019
DOI: 10.11648/j.jmpt.20190501.14      View  734      Downloads  94
Dispersion of light in diamond-like crystals is investigated. Dispersion laws of exciton polaritons in this structures, which (apart from the diamond itself) include silicon and germanium is obtained within the quasi-molecular model of valent crystals. Dispersion curves point to the fact that in the vicinity of exciton resonance under small damping one must account for the exciton-photon interaction. The calculation shows that in a certain frequency range the existence of an additional light wave is possible. The dispersion laws of exciton polaritons in a diamond-like structure in the vicinity of frequency of the lowest dipole transition of a crystalline quasi-molecule (a σ-bond) are obtained.
Diamond-like Crystals, Light Dispersion, Exciton Polaritons
To cite this article
Vladimir Rumyantsev, Light Dispersion in Diamond-like Crystals, Journal of Photonic Materials and Technology. Vol. 5, No. 1, 2019, pp. 16-23. doi: 10.11648/j.jmpt.20190501.14
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