Custom Caesium Iodide

Caesium Iodide (CsI) is a water soluble material that transmits from UV all the way to the Far IR, with its useful transmission extending to 55µm it has the deepest known IR transmission of the common infrared materials. It is very resistant to mechanical and thermal shock but can degrade under certain atmospheric conditions, especially when in contact with moisture.
 
 
Below is a brief summary of caesium iodide’s optical properties, a full data sheet is available here.

 
Knight Optical can supply high quality caesium iodide components, including windows, lenses and prisms, made to your custom specification. Our typical manufacturing specifications are listed below however we are always expanding our capabilities so if your requirements are not mentioned below, please contact our technical sales team who will guide you through your enquiry.
 

 
With our in-house state-of-the-art metrology laboratory you can be confident that your optical components will meet your requirements. You can find out more about our testing facilities here.