I am trying to measure the surface roughness of a transparent material, glass, using a profilometer. I am having problems due to the transparent nature of glass. Does any one know of any way to make transparent materials more reflective so that I can measure the roughness?
Thank you
Robert
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Regards, R. David Zopf
Does it have to be reflective or merely non-transparent? A layer of soot from a candle flame would be easy to apply, and non-transparent, but not very reflective.
You can deposit a thin layer of silver from solution with Tollen's reagent. This is much simpler and cheaper than sputtering, unless you already have a sputtering apparatus.
What kind of profilometer? A Dektak or Alphastep stylus profilometer or an AFM will have no trouble with a transparent substrate. Many surface roughness parameters can be measured
-J
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