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

Choi, YG, Curry, Richard and Hewak, DW (2012) Temperature dependent lifetime of Dy : 1.3 μm emission in Ge-As-S glass containing very small amount of Ga and CsBr Chemical Physics Letters.

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Abstract

The lifetime of 1.3 μm emission from Dy -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 Dy : ( H , F ) manifolds in our modified chalcogenide glass. © 2012 Elsevier B.V. All rights reserved.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute
Authors :
NameEmailORCID
Choi, YGUNSPECIFIEDUNSPECIFIED
Curry, RichardR.J.Curry@surrey.ac.ukUNSPECIFIED
Hewak, DWUNSPECIFIEDUNSPECIFIED
Date : 2012
Identification Number : 10.1016/j.cplett.2012.09.018
Copyright Disclaimer : © 2012 Elsevier B.V. All rights reserved.
Depositing User : Symplectic Elements
Date Deposited : 18 Aug 2017 09:19
Last Modified : 31 Oct 2017 14:48
URI: http://epubs.surrey.ac.uk/id/eprint/732922

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