[mems-talk] Optical constant of Corning Pyrex 7740

[memser]

Hello All, I would like to know optical constants (refractive index and extinction coefficient) of Corning Pyrex 7740 in the spectrum of 8-14um. I need them in designing optical filter.
Can anyone help in providing them to me. Date, curves, and  related papers or websites will all be fine. Thank you.

Best regards
X.Yan
Email: memser at tom.com
State key laboratory of Transducer Technology
Shanghai institute of Microsystem and information technology
Chinese Academy of Science
865 Chang Ning Road,Shanghai, P.R.China, 200050