Lastest Chalcogenide Glass developments

Prof Dan Hewak

Prof Dan Hewak, University of Southampton

Prof Dan Hewak, presented the latest ground breaking developments on chalcogenide glasses developed in ChAMP on Wednesday 28 September 2016 at SPIE Security + Defence and Remote Sensing meeting in Edinburgh. 17:10 paper 9989-2

Dan’s full presentation on next generation chalcogenide glasses is available here including details of the new extended GLS glass with transmission to 14 microns.

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Research Position Available

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Recent results from partners at Exeter and Oxford featured in Nature Photonics

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New refractive index data on GLS glass now available

GLS refractive index

GLS refractive index vs. wavelength

We have recently obtained new infrared ellipsometry data for our Gallium Lanthium Sulphide glass giving more accurate refractive index measurements to 10um. If you would like more detailed n or k data in this spectral region please contact us. The latest data sheet also has updates on the physical and optical propoerties of GLS Chalcogenide glass.

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Chalcogenide Workshop

As part of the Glass Reflections Conference ChAMP are orgainising a one day workshop on Chalcogenides on 9 September 2015 at Murray Edwards College, University of Cambridge.

To attend please register with the day rate for the Chalcogenide workshop or you are also of course welcome to attend the entire conference, which runs from 7 – 9 Sept

Papers include:-

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Chalcogenide fibres light the way for brain-like computing

Computers that function like the human brain, using optical fibres made of chalcogenide glass, could become a reality according to new research.

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Glass purity – reducing loss, extending operation, enabling applications

GLS_loss_LD1625_8-12um_2015A key focus of Champ is to continue the work conducted under the EPSRC Centre for Innovative Manufacturing in Photonics on reducing contamination and impurities in Chalcogenide glass.  A long-term focus on purifying raw materials and optimising the manufacturing process has led to a signficant reduction in oxide and water impurities.  GLS Chalcogenide glass loss in 2-6 micron windowThis has  yielded a 100x fold reduction in transmission loss at 5um and a signficant extension of the operating band edge to >10.5um, as shown, removing the path to applying chalcogenides in many applications.

Note there is no offset applied in these loss figures– the curve shown are a true reflection of the glass loss and the improvements made.

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