I need to find a source for a few DLATGS (deuterated L-alanine doped
triglycene sulphate) pyroelectric detectors. I have no idea how much they
cost nor where I can purchase them. I just need a few which I think is going
to make them tough to get since they're not a common part.

Specifically I'm looking for something along the lines of this:
http://www.sensarrayinfrared.com/NewFiles/py-55cm.html

But anything with a useful range that covers 2.5um-25um or so.

Anyone have any ideas?