Hi Xinjie,

Google TOPAS or CYTOP for the details of the materials. I think one of them
could work.

BR,
Fei

2011/3/23 Xinjie Song 

> Dear All,
>
> I need some help on photoresist/polymer.
>
> I'm now looking for a type of photoresist/polymer, whose refractive index
> is
> <1.538 @1.55um cuz i need it to be a cladding layer of a waveguide. The
> smaller the refractive index is, the better. Any suggestions, please?
>
> Thanks in advance
>
> Xinjie Song, PhD student

--
Best regards,
Yours sincerely
Fei Wang
______________
Assistant Professor, Dr
MIC - Department of Micro and Nanotechnology
Technical University of Denmark (DTU)
Building 344, 1st floor, Room no. 130
DK-2800, Kgs. Lyngby
Denmark
Tel:  +45 4525 6311
Fax:  +45 4588 7762
Email: fei.wang@nanotech.dtu.dk
       http://www.nanotech.dtu.dk