I am looking for an abbe refractometer that will measure SOLID
polished samples with index in range of 1.6 to 1.85.

I am aware of liquid one's that go that high but not SOLID ones.

I am also aware of the minimum deviation method and have tried this,
but need better resolution.

Also if you know of a company who will perform these high index
measurement on SOLID polished surfaces that would also be appreciated.

If one does not exist, who wants to design and build one?

Michael
www.oscintl.com

I am looking for an abbe refractometer that will measure SOLID
polished samples with index in range of 1.6 to 1.85.

I am aware of liquid one's that go that high but not SOLID ones.

I am also aware of the minimum deviation method and have tried this,
but need better resolution.

Also if you know of a company who will perform these high index
measurement on SOLID polished surfaces that would also be appreciated.


I think that a Pulfrich refractometer would do the trick.

Now for some for some reason they seem to be relegated to the realm of
antique instrunents.

http://www.antique-microscopes.com/chemistry/Zeiss_Pulfrich_Refractom...
Very nice hi rez photos, thanks.

http://www.gemmary.com/instcat/07/07-016.html

http://www.humboldt.edu/~scimus/RefracExhibit/SpecDesc/Zeiss05_Pulfri...

http://www.humboldt.edu/~scimus/RefracExhibit/ChemRefrac.htm

What's the size of your samples?