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How to measure optical penetration depth of polymer film?

 
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Jul30-12, 09:04 AM   #1
 

How to measure optical penetration depth of polymer film?

Hi,

Let say I have a polymer film made by spin coating or drop casting. Any idea how to measure its optical penetration depth? I know that we can use Beert-Lambert [1] law but I'm still confuse how technically I could do that.

kind regards,
yfir

1. http://en.wikipedia.org/wiki/Beer%E2%80%93Lambert_law
 
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