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arXiv · 1401.7815

Infrared luminescence in Bi-doped Ge-S and As-Ge-S chalcogenide glasses and fibers

V. G. Plotnichenko·D. V. Philippovskiy·V. O. Sokolov·M. V. Sukhanov·A. P. Velmuzhov·M. F. Churbanov·E. M. Dianov
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Abstract

Experimental and theoretical studies of spectral properties of chalcogenide Ge-S and As-Ge-S glasses and fibers are performed. A broad infrared (IR) luminescence band which covers the 1.2-2.3~$μ$m range with a lifetime about 6~$μ$s is discovered. Similar luminescence is also present in optical fibers drawn from these glasses. Arsenic addition to Ge-S glass significantly enhances both its resistance to crystallization and the intensity of the luminescence. Computer modeling of Bi-related centers shows that interstitial Bi$^+$ ions adjacent to negatively charged S vacancies are most likely responsible for the IR luminescence.

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V. G. Plotnichenko, D. V. Philippovskiy, V. O. Sokolov, M. V. Sukhanov, A. P. Velmuzhov, M. F. Churbanov, E. M. Dianov. 2014-01-30. Infrared luminescence in Bi-doped Ge-S and As-Ge-S chalcogenide glasses and fibers. https://doi.org/10.1364/ome.4.000366

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