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Determination of the oxidation state and coordination of a vanadium doped chalcogenide glass

Determination of the oxidation state and coordination of a vanadium doped chalcogenide glass
Determination of the oxidation state and coordination of a vanadium doped chalcogenide glass
Vanadium doped chalcogenide glass has potential as an active gain medium, particularly at telecommunications wavelengths. This dopant has three spin allowed absorption transitions at 1100, 737 and 578 nm, and a spin forbidden absorption transition at 1000 nm. X-ray photo electron spectroscopy indicated the presence of vanadium in a range of oxidation states from V+ to V5+. Excitation of each absorption band resulted in the same characteristic emission spectrum and lifetime, indicating that only one oxidation state is optically active. Arguments based on Tanabe-Sugano analysis indicated that the configuration of the optically active vanadium ion was octahedral V2+. The calculated crystal field parameters (Dq/B, B and C/B) were 1.85, 485.1 and 4.55, respectively.
315-322
Hughes, Mark A.
2306bfa8-7474-43ee-bf89-01bb035889bb
Curry, Richard J.
409b626f-f0b9-4b5e-a12c-6f8b87d20ee0
Hewak, Daniel W.
87c80070-c101-4f7a-914f-4cc3131e3db0
Hughes, Mark A.
2306bfa8-7474-43ee-bf89-01bb035889bb
Curry, Richard J.
409b626f-f0b9-4b5e-a12c-6f8b87d20ee0
Hewak, Daniel W.
87c80070-c101-4f7a-914f-4cc3131e3db0

Hughes, Mark A., Curry, Richard J. and Hewak, Daniel W. (2011) Determination of the oxidation state and coordination of a vanadium doped chalcogenide glass Optical Materials, 33, (3), pp. 315-322. (doi:10.1016/j.optmat.2010.09.007).

Record type: Article

Abstract

Vanadium doped chalcogenide glass has potential as an active gain medium, particularly at telecommunications wavelengths. This dopant has three spin allowed absorption transitions at 1100, 737 and 578 nm, and a spin forbidden absorption transition at 1000 nm. X-ray photo electron spectroscopy indicated the presence of vanadium in a range of oxidation states from V+ to V5+. Excitation of each absorption band resulted in the same characteristic emission spectrum and lifetime, indicating that only one oxidation state is optically active. Arguments based on Tanabe-Sugano analysis indicated that the configuration of the optically active vanadium ion was octahedral V2+. The calculated crystal field parameters (Dq/B, B and C/B) were 1.85, 485.1 and 4.55, respectively.

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Published date: January 2011
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 192617
URI: http://eprints.soton.ac.uk/id/eprint/192617
PURE UUID: 944fa312-0480-4237-a64b-90917eb95cc0
ORCID for Daniel W. Hewak: ORCID iD orcid.org/0000-0002-2093-5773

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Date deposited: 06 Jul 2011 13:29
Last modified: 18 Jul 2017 11:31

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Contributors

Author: Mark A. Hughes
Author: Richard J. Curry
Author: Daniel W. Hewak ORCID iD

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