Temperature-Invariant Behaviour of Bandpass Filters
What is it about?
This paper presents the results of an investigation into the interdependence between multilayer bandpass design and optical materials together with a review on invariance at elevated temperatures.
Why is it important?
The unique negative temperature coefficient (dn/dT<0) of Lead-based (Pb) salts, in combination with dielectric materials enable bandpass filters with exclusive immunity to shifts in wavelength with temperature.
The following have contributed to this page: Dr Gary J Hawkins