Jeff,

I thing that if you use a microscope with interference contrast you will be
able to see the lines again.

Brent

Jeffrey Price wrote:

> Hello,
>
> I am trying to diffuse Ti strips into Lithium Niobate.  The strips run
> from approximately 3 -10 um.  After diffusion (which I have run
> different permutations ranging from 1-9h and 900-1050C) in a wet
> nitrogen environment the waveguides completely disappear.  I know that
> the index delta should be approximately .01 so they should be difficult
> to see, but I can't seem to see anything at all.  I was wondering if
> anyone has had this problem before or can help me find a solution.  Thanks.
>
> Jeff Price
> Research Assistant, University of Delaware
> price@ee.udel.edu
>
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