12 July 2002 Absorption spectra of GaN:Er3+ crystals
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Proceedings Volume 4766, XI Feofilov Symposium on Spectroscopy of Crystals Activated by Rare-Earth and Transition Metal Ions; (2002) https://doi.org/10.1117/12.475320
Event: XI Feofilov Symposium on Spectroscopy of Crystals Activated by Rare-Earth and Transition Metal Ions, 2001, Kazan, Russian Federation
Abstract
We have studied the f-f absorption spectra of Er3+ in GaN crystal grown by gas phase epitaxy in chlorine system. A detailed study of 4I15/2 yields 2H11/2 transitions in the region 19000-19260 cm-1, has been carried out at 293, 77 and 2K. At T equals 2K the 4I15/2 yields 2H11/2 spectrum contains 6 lines in accordance with theoretical predictions for Er3+ in noncubic crystal field. The levels of 2H11/2 multiplet are situated at: 19041, 19049, 19074, 19108, 19191, 19246 cm-1. The number of lines observed at T equals 2K and its small width indicate that in our samples Er3+ ions occupy predominantly a unique position in GaN lattice. Most probably, Er3+ substitutes Ga atoms or enters in interstitial position.
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Vladimir V. Krivolapchuk, Margarita M. Mezdrogina, S. D. Raevskii, Alexander P. Skvortsov, Sh. A. Yusupova, "Absorption spectra of GaN:Er3+ crystals", Proc. SPIE 4766, XI Feofilov Symposium on Spectroscopy of Crystals Activated by Rare-Earth and Transition Metal Ions, (12 July 2002); doi: 10.1117/12.475320; https://doi.org/10.1117/12.475320
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