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Next generation chalcogenide glasses for visible and IR imaging

Next generation chalcogenide glasses for visible and IR imaging
Next generation chalcogenide glasses for visible and IR imaging
A commercial supply of chalcogenide glasses has existed for several decades however little has changed in terms of new compositions, manufacturing methods or improvements of key metrics during this time. Since the early 1990s the University of Southampton has been developing a relatively unknown family of chalcogenides based on gallium and lanthanum. Glass melting methods have been significantly improved and characterization reveals significantly high thermal stability, to temperatures over 500°C, and improved mechanical strength and hardness. Previously restricted to transmission below 9 microns, new formulations of these glasses has extended transmission to beyond 13 microns whilst maintaining thermal and mechanical stability and some visible transmission. Moreover, these glasses are readily moulded and extruded, enable more economical component manufacture. As an optical fibre, these glasses have their loss minimum centred on the 3 - 5 micron band. Qualification of these materials in the laboratory is now underway with a view to working with end users to exploit their performance advantages.
Hewak, Daniel
87c80070-c101-4f7a-914f-4cc3131e3db0
Bastock, Paul
73583809-d787-4eb4-8b93-2110c5e2f29e
Craig, Chris
2328b42b-552e-4a82-941d-45449e952f10
Huang, Chung-Che
825f7447-6d02-48f6-b95a-fa33da71f106
Khan, Khouler
2b9242c4-2082-4bd3-843c-0c5e137b78f9
Ravagli, Andrea
36bc59df-8134-42d1-9871-bcf7bab6539a
Weatherby, Ed
90e34e23-3a6e-432f-8003-6510efbe1d02
Hewak, Daniel
87c80070-c101-4f7a-914f-4cc3131e3db0
Bastock, Paul
73583809-d787-4eb4-8b93-2110c5e2f29e
Craig, Chris
2328b42b-552e-4a82-941d-45449e952f10
Huang, Chung-Che
825f7447-6d02-48f6-b95a-fa33da71f106
Khan, Khouler
2b9242c4-2082-4bd3-843c-0c5e137b78f9
Ravagli, Andrea
36bc59df-8134-42d1-9871-bcf7bab6539a
Weatherby, Ed
90e34e23-3a6e-432f-8003-6510efbe1d02

Hewak, Daniel, Bastock, Paul, Craig, Chris, Huang, Chung-Che, Khan, Khouler, Ravagli, Andrea and Weatherby, Ed (2016) Next generation chalcogenide glasses for visible and IR imaging. SPIE Security + Defence and Remote Sensing, Edinburgh, United Kingdom. 25 - 28 Sep 2016.

Record type: Conference or Workshop Item (Paper)

Abstract

A commercial supply of chalcogenide glasses has existed for several decades however little has changed in terms of new compositions, manufacturing methods or improvements of key metrics during this time. Since the early 1990s the University of Southampton has been developing a relatively unknown family of chalcogenides based on gallium and lanthanum. Glass melting methods have been significantly improved and characterization reveals significantly high thermal stability, to temperatures over 500°C, and improved mechanical strength and hardness. Previously restricted to transmission below 9 microns, new formulations of these glasses has extended transmission to beyond 13 microns whilst maintaining thermal and mechanical stability and some visible transmission. Moreover, these glasses are readily moulded and extruded, enable more economical component manufacture. As an optical fibre, these glasses have their loss minimum centred on the 3 - 5 micron band. Qualification of these materials in the laboratory is now underway with a view to working with end users to exploit their performance advantages.

Full text not available from this repository.

More information

e-pub ahead of print date: 28 September 2016
Venue - Dates: SPIE Security + Defence and Remote Sensing, Edinburgh, United Kingdom, 2016-09-25 - 2016-09-28
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 401683
URI: http://eprints.soton.ac.uk/id/eprint/401683
PURE UUID: e4232068-27de-4534-881c-d0b745e68142
ORCID for Daniel Hewak: ORCID iD orcid.org/0000-0002-2093-5773
ORCID for Chris Craig: ORCID iD orcid.org/0000-0001-6919-4294
ORCID for Chung-Che Huang: ORCID iD orcid.org/0000-0003-3471-2463

Catalogue record

Date deposited: 19 Oct 2016 13:21
Last modified: 18 Feb 2021 17:18

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Contributors

Author: Daniel Hewak ORCID iD
Author: Paul Bastock
Author: Chris Craig ORCID iD
Author: Chung-Che Huang ORCID iD
Author: Khouler Khan
Author: Andrea Ravagli
Author: Ed Weatherby

University divisions

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