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.
This record has no associated files available for download.
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
Catalogue record
Date deposited: 19 Oct 2016 13:21
Last modified: 12 Dec 2021 03:54
Export record
Contributors
Author:
Paul Bastock
Author:
Khouler Khan
Author:
Andrea Ravagli
Author:
Ed Weatherby
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
