Emission and absorption cross sections of Er3+:LiNbO3 crystal : Composition effect

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)1920-1926
Journal / PublicationOptical Materials Express
Volume5
Issue number9
Publication statusPublished - 2015

Abstract

We report Er3+-doping, Mg2+-codoping and crystal composition effects on emission and absorption cross sections of Er3+-only doped and Er3+/Mg2+-codoped LiNbO3 crystals, in which Er3+ concentration ranges from 0.3 to 2.7 mol% and Mg2+ concentration from 1.2 to 7.4 mol%. The emission cross section spectra were calculated from the measured fluorescent spectra and the absorption cross section spectra were computed using the McCumber relation. The results show that increasing Er3+ concentration tends to decrease the cross section, while codoping with Mg2+ or increasing crystal composition tends to increase the cross section. As the composition is close to the stoichiometry, the cross section value tends to a constant. These effects are related to Er3+ site redistribution induced by doping or crystal composition alteration.

Citation Format(s)

Emission and absorption cross sections of Er3+:LiNbO3 crystal : Composition effect. / Zhang, De-Long; Sun, Wen-Bao; Wong, Wing-Han; Pun, Edwin Yue-Bun.

In: Optical Materials Express, Vol. 5, No. 9, 2015, p. 1920-1926.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review