With a new glass formulation, ChAMP has extended the transmission of high durability non-toxic chalcogenide glasses from the visible to the thermal infrared LWIR band
Visible imaging through extended GLS glass
Simultaneous thermal imaging and visible edge recognition imaging through extended GLS glass
Images show a thermal LWIR image from 7-14 microns being simultaneously transmitted through the same glass as the visible image. With a glass formulation specifically chosen for its strong covalent bonding this new glass also has a transition temperature of over 450C, more than twice as high as other common chalcognides. This makes extended GLS physically, mechanically and chemically robust and compatible with molding and diamond turning. Opening the way to a new generation of light weight single optic simultaneous multiband visible, short-wave, mid-wave and long-wave imaging camera systems for applications in security, industrial and medical sensing.
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.
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.
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