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Influence of deposition parameters on composition and refractive index of femtosecond and nanosecond pulsed laser deposited gallium lanthanum oxysulphide

Influence of deposition parameters on composition and refractive index of femtosecond and nanosecond pulsed laser deposited gallium lanthanum oxysulphide
Influence of deposition parameters on composition and refractive index of femtosecond and nanosecond pulsed laser deposited gallium lanthanum oxysulphide
The influence of the deposition parameters on femtosecond and nanosecond pulsed laser deposited gallium lanthanum oxysulphide (GLSO) glass has been investigated. A systematic comparison between films deposited by femtosecond and nanosecond pulsed laser deposition (PLD) shows that the compositional range of each regime varies significantly; in particular femtosecond PLD shows a unique potential for selective fabrication of films with high lanthanum content well outside the conventional glass melting region. We demonstrate how manipulation of PLD parameters can influence the stoichiometric transfer of the PLD process, leading to thin films with compositions significantly different from the GLSO target material, and reveal how refractive index of the as-deposited films is dependent upon the composition (and hence deposition parameters). We also briefly discuss the thermal properties of GLSO material for various compositions for applications in data storage device applications.
films and coatings, laser deposition, infrared glasses, chalcogenides
0022-3093
4582-4588
Darby, M.S.B.
c6ef0c2c-dd94-4e39-bae4-e785657048f0
Simpson, R.E.
56e8b388-f479-49c7-bd14-de1ac014d40a
May-Smith, T.C.
47952bbd-ce28-4507-a723-b4d80bf0f809
Hewak, D.
87c80070-c101-4f7a-914f-4cc3131e3db0
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020
Darby, M.S.B.
c6ef0c2c-dd94-4e39-bae4-e785657048f0
Simpson, R.E.
56e8b388-f479-49c7-bd14-de1ac014d40a
May-Smith, T.C.
47952bbd-ce28-4507-a723-b4d80bf0f809
Hewak, D.
87c80070-c101-4f7a-914f-4cc3131e3db0
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020

Darby, M.S.B., Simpson, R.E., May-Smith, T.C., Hewak, D. and Eason, R.W. (2008) Influence of deposition parameters on composition and refractive index of femtosecond and nanosecond pulsed laser deposited gallium lanthanum oxysulphide. Journal of Non-Crystalline Solids, 354 (40-41), 4582-4588. (doi:10.1016/j.jnoncrysol.2008.06.005).

Record type: Article

Abstract

The influence of the deposition parameters on femtosecond and nanosecond pulsed laser deposited gallium lanthanum oxysulphide (GLSO) glass has been investigated. A systematic comparison between films deposited by femtosecond and nanosecond pulsed laser deposition (PLD) shows that the compositional range of each regime varies significantly; in particular femtosecond PLD shows a unique potential for selective fabrication of films with high lanthanum content well outside the conventional glass melting region. We demonstrate how manipulation of PLD parameters can influence the stoichiometric transfer of the PLD process, leading to thin films with compositions significantly different from the GLSO target material, and reveal how refractive index of the as-deposited films is dependent upon the composition (and hence deposition parameters). We also briefly discuss the thermal properties of GLSO material for various compositions for applications in data storage device applications.

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Published date: 2008
Keywords: films and coatings, laser deposition, infrared glasses, chalcogenides

Identifiers

Local EPrints ID: 65487
URI: http://eprints.soton.ac.uk/id/eprint/65487
ISSN: 0022-3093
PURE UUID: 1c52eeac-bb15-46d5-b3e1-6e9de9de8289
ORCID for D. Hewak: ORCID iD orcid.org/0000-0002-2093-5773
ORCID for R.W. Eason: ORCID iD orcid.org/0000-0001-9704-2204

Catalogue record

Date deposited: 17 Feb 2009
Last modified: 20 May 2021 01:34

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