Title

High Photoluminescence In Erbium-Doped Chalcogenide Thin Films

Abstract

The spectral properties of the chalcogenide glasses As2S3 and As24S38Se38-doped with Er3+ are presented and discussed. Thin films were formed by thermal evaporation and the erbium doping was obtained by subsequent ion implantation. Strong Er3+ emission at 1.54 μm has been observed. The high refractive index of these chalcogenide glasses lead to Er3+ emission cross-sections (15 × 10-21 cm2) which are two times higher than for doped silica glass. The lifetime of the Er3+ metastable 4I13/2 energy level was measured to be 2.3 ms. This short lifetime is consistent with the high emission cross-section. Furthermore, the very low phonon energies of chalcogenide glasses lead to relatively long lifetimes of the Er3+4I11/2 pump level, which have been measured to be of the order of 0.25 ms. These spectral properties make this glass a good candidate for applications in the field of integrated optics. © 2000 Elsevier Science B.V. All rights reserved.

Publication Date

1-1-2000

Publication Title

Journal of Non-Crystalline Solids

Volume

272

Issue

2-3

Number of Pages

200-208

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/S0022-3093(00)00119-8

Socpus ID

0001082364 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0001082364

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