How can we design an optical filter with prefixed cutoff frequencies using multilayer concept?

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Robert Bogdanowicz

You have to model the optical structure you could use eg. TFcalc (http://www.sspectra.com/) or TFCOmpanion http://www.semiconsoft.com/html/TFComp_intro.htm or just calculate in matlab....

Oliver Merle

There is a nice open source tool for dielectric multilayer optimization utilizing the needle approach: OpenFilters (http://dx.doi.org/10.1364/AO.47.00C219). I tried it once and it works quite stable. I recommend to compile the python extension to improve the computation speed.

Kebbab Zoubir

Dear Oliver Merle;

I have used this program for this purpose. It is very useful for this kind of work, but I wish to obtain prefixed result in term of cut off frequency for example. That is not possible for the moment with this software.

Cordially.

Zoubir Kebbab

Michel Herszak

Dear Kebbab,

We have a simulator if you are interested contact me and I redirect you to the right people. Cheers,