Absorption spectra of GaN:Er3+ crystals

Vladimir V. Krivolapchuk; Margarita M. Mezdrogina; S. D. Raevskii; Alexander P. Skvortsov; Sh. A. Yusupova

doi:10.1117/12.475320

12 July 2002 Absorption spectra of GaN:Er³⁺crystals

Vladimir V. Krivolapchuk, Margarita M. Mezdrogina, S. D. Raevskii, Alexander P. Skvortsov, Sh. A. Yusupova

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 ⁴I_15/2 yields ²H_11/2 transitions in the region 19000-19260 cm^-1, has been carried out at 293, 77 and 2K. At T equals 2K the ⁴I_15/2 yields ²H_11/2 spectrum contains 6 lines in accordance with theoretical predictions for Er³⁺ in noncubic crystal field. The levels of ²H_11/2 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.

Citation Download Citation

Vladimir V. Krivolapchuk, Margarita M. Mezdrogina, S. D. Raevskii, Alexander P. Skvortsov, and 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); https://doi.org/10.1117/12.475320

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