Visit us at Stand 121 Hall B2 at LASER World of Photonics in Munich 24-27 June 2019 to learn more of the latest developments in Chalcogenide glass development including the latest moulded lens samples, progress in optical fibre development and extended infrared transmission.
In response to many requests from optical designers and using the latest visible to infrared index data for GLS glass we are pleased to release the full Sellmeier coefficients for GLS. Use of the following coefficient enables the refractive properties of GLS lenses to be modelled in most common lens design programs.
Note it is essential to use the five parameter version of the Sellmeier equation, with the following coefficients
If you would also like dn/dT data to further aid you modelling please contact us
ChAMP have been exhibiting all weeks at SPIE’s Defense and Commercial Sensing meeting in Baltimore with plenty of industry interest in the GLS family of glasses
In partnership with Artemis Optical, anti-reflection coating of GLS chalcogenide glass has been demonstrated. This reduces reflections from GLS glass surfaces to <1%, significantly lower than the ~28% reflection from the uncoated glass that is a result of its high refractive index. with Testing of the coated optics, shows them passing industrial standard adhesion, abrasion and solubility tests without problem and passing humidity and temperature environmental testing.
Initial test were for unoptimized coatings designed for the 3-5micron waveband. Please contact us to discuss collaborations on broader-band and lower loss coatings.
2d-material integration enabled by direct deposition of chalcogenide glass onto graphene is detailed in our latest Nature publication, in collaboration with MIT The deposited chalcogenides can be directly pattered on a variety of 2D materials to simultaneously act as passive light guides, active gates and protect the 2D material without the transfer processes previously used.
A new paper published 27 September 2017 by ChAMP partners from Oxford and Exeter continues the search for new “neuromorphic computing” architectures that mimic the brain’s approach to simultaneous processing and storage of information is intense.