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Proceedings Paper

Electro-optical effects in 2D macroporous silicon structures with nanocoatings
Author(s): Lyudmyla Karachevtseva; Yuriy Goltviansky; Oleg Lytvynenko; Konstantin Parshyn; Fedir Sizov; Olena Stronska
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Paper Abstract

The near-IR light absorption oscillations in 2D macroporous silicon structures with microporous silicon layers, CdTe surface nanocrystals and SiO2 nanocoatings are investigated. The electro-optical effect was taken into account within the strong electric field approximation. Well-separated oscillations with giant amplitude were observed in the spectral ranges of surface level absorption. This process is because of resonance electron scattering on the surface impurity states with the difference between two resonance energies equal to the Wannier-Stark ladder due to big scattering lifetime as compared to the electron oscillation period in an electric field. The electron transitions and free electron motion are realized due to additional change of local electric field as a result of grazing light incidence and quasi-guided mode formation.

Paper Details

Date Published: 16 May 2011
PDF: 9 pages
Proc. SPIE 8071, Nonlinear Optics and Applications V, 807103 (16 May 2011); doi: 10.1117/12.885687
Show Author Affiliations
Lyudmyla Karachevtseva, V. Lashkaryov Institute of Semiconductor Physics (Ukraine)
Yuriy Goltviansky, V. Lashkaryov Institute of Semiconductor Physics (Ukraine)
Oleg Lytvynenko, V. Lashkaryov Institute of Semiconductor Physics (Ukraine)
Konstantin Parshyn, V. Lashkaryov Institute of Semiconductor Physics (Ukraine)
Fedir Sizov, V. Lashkaryov Institute of Semiconductor Physics (Ukraine)
Olena Stronska, V. Lashkaryov Institute of Semiconductor Physics (Ukraine)


Published in SPIE Proceedings Vol. 8071:
Nonlinear Optics and Applications V
Mario Bertolotti, Editor(s)

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