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Temperature dependent lifetime of Dy3+: 1.3µm emission in Ge-As-S glass containing very small amount of Ga and CsBr

Temperature dependent lifetime of Dy3+: 1.3µm emission in Ge-As-S glass containing very small amount of Ga and CsBr
Temperature dependent lifetime of Dy3+: 1.3µm emission in Ge-As-S glass containing very small amount of Ga and CsBr
The lifetime of 1.3µm emission from Dy3+-doped Ge-As-S glass containing very small amount of Ga and CsBr reveals interesting temperature dependence; with the addition of Ga/CsBr up to ~0.2 mol% the lifetime decreases with increasing temperature. When the concentration of Ga/CsBr reaches ~0.3 mol%, however, the lifetime remains relatively constant regardless of temperature change. For further addition up to ~0.5 mol%, the lifetime increases as temperature rises. This uncommon behavior is explained through our understanding of the different temperature dependences of multiphonon relaxation and spontaneous emission rates associated with the thermally coupled Dy3+: (6H9/2, 6F11/2) manifolds in our modified chalcogenide glass.
0009-2614
101-104
Choi, Yong Gyu
d05b7953-9f75-4633-9591-b6fede958ec6
Curry, Richard J.
409b626f-f0b9-4b5e-a12c-6f8b87d20ee0
Hewak, Daniel W.
87c80070-c101-4f7a-914f-4cc3131e3db0
Choi, Yong Gyu
d05b7953-9f75-4633-9591-b6fede958ec6
Curry, Richard J.
409b626f-f0b9-4b5e-a12c-6f8b87d20ee0
Hewak, Daniel W.
87c80070-c101-4f7a-914f-4cc3131e3db0

Choi, Yong Gyu, Curry, Richard J. and Hewak, Daniel W. (2012) Temperature dependent lifetime of Dy3+: 1.3µm emission in Ge-As-S glass containing very small amount of Ga and CsBr. Chemical Physics Letters, 551, 101-104. (doi:10.1016/j.cplett.2012.09.018).

Record type: Article

Abstract

The lifetime of 1.3µm emission from Dy3+-doped Ge-As-S glass containing very small amount of Ga and CsBr reveals interesting temperature dependence; with the addition of Ga/CsBr up to ~0.2 mol% the lifetime decreases with increasing temperature. When the concentration of Ga/CsBr reaches ~0.3 mol%, however, the lifetime remains relatively constant regardless of temperature change. For further addition up to ~0.5 mol%, the lifetime increases as temperature rises. This uncommon behavior is explained through our understanding of the different temperature dependences of multiphonon relaxation and spontaneous emission rates associated with the thermally coupled Dy3+: (6H9/2, 6F11/2) manifolds in our modified chalcogenide glass.

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Published date: 2012
Organisations: Optoelectronics Research Centre

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Local EPrints ID: 357244
URI: https://eprints.soton.ac.uk/id/eprint/357244
ISSN: 0009-2614
PURE UUID: 42ef135c-2c87-4829-a97c-482b939e943c
ORCID for Daniel W. Hewak: ORCID iD orcid.org/0000-0002-2093-5773

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Date deposited: 04 Oct 2013 14:11
Last modified: 26 Jul 2019 00:37

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Contributors

Author: Yong Gyu Choi
Author: Richard J. Curry
Author: Daniel W. Hewak ORCID iD

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