Hello,

I am wondering which convetion is used for the wavenumber k in the FFT 
output? It looks like that k=1/lambda, if lambda is the wavelength, in 
the output of the FFT. As this is not clear from the documentation. I am 
not sure if it is not k=2*pi/lambda as usally defined in mathematics.

Greetings
Martin Engler

-- 
Martin Engler
Universität zu Köln
II. Physikalisches Institut
Zülpicher Str. 77
50937 Köln, Deutschland
Telefon: +49 221 470-3658
Telefax: +49 221 470-5178


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