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It’s a lot like Teflon

Where can I get a little bit of Teflon?  AngstromLink AL-2233 is basically that. A Teflon-like polymer dissolved in an evaporative solvent.  To get a thin layer of ‘almost -Teflon’, make a thin layer of AL-2233 and let the solvent...

Why is high refractive index important?

Optical polymers are very specialized materials. Not only are they lightweight, easy to process, strong, inexpensive and transparent; some of them (like the OKP polyesters) have high refractive index. High refractive index?? Refractive index is a measure of how light...

Let’s get really small

Nothing in the ordinary world informs our intuition about how materials will behave at molecular interfaces.  The cartoon below shows a typical imprinting process:  a photoimageable imprint resin formed into a layer on a rigid substrate (silicon or glass wafer),...

Selection of Index Matching Materials

Designing optics for index matching requires knowledge of the refractive index of the adjoining optical materials.  By convention, the value of the refractive index at the Sodium D line (589nm, ‘yellow’) is usually quoted for optical materials, even when the...

On Culture and Modern Times

OKP has been my introduction to working with a foreign supplier.  We stock this moldable plastic at Fiber Optic Center to make it readily available to users in North America.  Should be easy, right? With all the talk these days...