question about photoresist

Luigi Scaccabarozzi scaccag at
Fri Jul 16 19:01:58 PDT 2004

Hi all,
I have a question: I'm looking for a photoresist (or photosensitive
material, that I can expose) with the following characteristics:
- index of refraction ~ 1.6 @ 1.55um wavelength
- with NO (or extremely low) absortion @ ~1.55um AND 780nm (I want to use
it as cladding for GaAs waveguides)
-thickness ~3-4 um

I looked in papers, but I cannot find any information at these
wavelengths. If anybody has (had) experience with this kind of problem or
know where I could find such information, it would be great!
Many thanks for your time.

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