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Extreme hypersensitivity observed from 6H15/2 to 6F11/2 transition of Dy3+ in inorganic noncrystalline solids

Extreme hypersensitivity observed from 6H15/2 to 6F11/2 transition of Dy3+ in inorganic noncrystalline solids
Extreme hypersensitivity observed from 6H15/2 to 6F11/2 transition of Dy3+ in inorganic noncrystalline solids
Absorption transition from the ground 6H15/2 state to the superimposed (6H9/2, 6F11/2) states, inverse transition of which leads the Dy3+: 1.3 micron luminescence, in noncrystalline Ge-As-S alloys is dramatically modified upon a least compositional adjustment by Ga and CsBr. The change in oscillator strength of the Dy3+: 6H15/2 -- 6F11/2 transition in our modified glasses is more sensitive to the local coordination structure of rare-earths compared to other hypersensitive transitions that have been previously observed in solid-state dielectric hosts. Preferential highly symmetric coordination in nearest-neighbouring shell of dysprosium with bromine in [GaS3/2Br]- complexes, which are formed spontaneously during vitrification process of the host materials, is believed to be responsible for the behaviour.
0009-2614
29-34
Choi, Y.G.
24a6ccc3-a6e5-41cf-a491-d70420a4ac8e
Curry, R.J.
1ae2a4da-7efe-4333-a34e-0ec20ae95154
Park, B.J.
ab227e88-4e47-414c-887f-a40a29c746cd
Kim, K.H.
fbb61d01-2c5d-4166-9e6f-b7d1e5116aef
Heo, J.
1893a8c2-7da0-4601-b3bd-d2c2dc90e40a
Hewak, D.W.
87c80070-c101-4f7a-914f-4cc3131e3db0
Choi, Y.G.
24a6ccc3-a6e5-41cf-a491-d70420a4ac8e
Curry, R.J.
1ae2a4da-7efe-4333-a34e-0ec20ae95154
Park, B.J.
ab227e88-4e47-414c-887f-a40a29c746cd
Kim, K.H.
fbb61d01-2c5d-4166-9e6f-b7d1e5116aef
Heo, J.
1893a8c2-7da0-4601-b3bd-d2c2dc90e40a
Hewak, D.W.
87c80070-c101-4f7a-914f-4cc3131e3db0

Choi, Y.G., Curry, R.J., Park, B.J., Kim, K.H., Heo, J. and Hewak, D.W. (2005) Extreme hypersensitivity observed from 6H15/2 to 6F11/2 transition of Dy3+ in inorganic noncrystalline solids. Chemical Physics Letters, 403 (1-3), 29-34. (doi:10.1016/j.cplett.2004.12.108).

Record type: Article

Abstract

Absorption transition from the ground 6H15/2 state to the superimposed (6H9/2, 6F11/2) states, inverse transition of which leads the Dy3+: 1.3 micron luminescence, in noncrystalline Ge-As-S alloys is dramatically modified upon a least compositional adjustment by Ga and CsBr. The change in oscillator strength of the Dy3+: 6H15/2 -- 6F11/2 transition in our modified glasses is more sensitive to the local coordination structure of rare-earths compared to other hypersensitive transitions that have been previously observed in solid-state dielectric hosts. Preferential highly symmetric coordination in nearest-neighbouring shell of dysprosium with bromine in [GaS3/2Br]- complexes, which are formed spontaneously during vitrification process of the host materials, is believed to be responsible for the behaviour.

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More information

Published date: 2005
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 15029
URI: https://eprints.soton.ac.uk/id/eprint/15029
ISSN: 0009-2614
PURE UUID: dbf7cbd2-306a-482c-8913-7748dd96a768
ORCID for D.W. Hewak: ORCID iD orcid.org/0000-0002-2093-5773

Catalogue record

Date deposited: 11 May 2005
Last modified: 06 Jun 2018 13:08

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