 
Polymer Reflectors and Filters
CRG has developed processes to make polymer
liquid crystal films with controlled bandwidth. This process
allows the spectral band that reflects or filters to be chosen.
CRG creates the very thin film (5-15 nm) by placing the liquid
crystal polymer film between glass substrates. These films
can be curved over concave or convex surfaces with demonstrated
band placement from UV to NIR, 400 nm to 2000 nm.
Reflectors
The polymer liquid crystal films developed by CRG are polarized
but can be layered to produce 100% reflection. Using layers
of such nearly identical materials minimizes any interface
interaction.
Filters
Polymer liquid crystal films can be used to create high-performance
filters at lower cost in the NIR range of 800 nm-2000 nm.
These filters give much higher performance than IR dyes and
cost less than conventional dialectric filters.
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