Abstract
Results obtained in an experimental study of spontaneous emission from erbium ions in a spectral range corresponding to the lower photonic band edge of distributed Bragg reflectors (1D photonic crystals) are presented. The photonic crystals were constituted of alternating quarter-wave a-Si:H and a-SiOx:H layers grown by PECVD. Erbium was introduced into the a-Si:H layers by magnetron sputtering of an erbium target in the course of structure growth. The change observed in the intensity of spontaneous emission is due to the nonmonotonic behavior of the density of optical modes near the photonic band edge.
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Translated from Fizika i Tekhnika Poluprovodnikov, Vol. 39, No. 11, 2005, pp. 1403–1407.
Original Russian Text Copyright © 2005 by Medvedev, Feoktistov, Pevtsov, Golubev.
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Medvedev, A.V., Feoktistov, N.A., Pevtsov, A.B. et al. Enhancement of spontaneous erbium emission near the photonic band edge of distributed Bragg reflectors based on a-Si:H/a-SiOx:H. Semiconductors 39, 1356–1360 (2005). https://doi.org/10.1134/1.2128466
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DOI: https://doi.org/10.1134/1.2128466