Transform Axis

waveguide
Posts: 10
Joined: 2009-11-25
Location: United States

Hello,

I am trying to work with the "Transform Axis" in IgorPro6.03A version.

My bottom axis is in eV, I would like to have a top-axis in nm.

Somehow (even after reading "HELP" topic) I just do not manage to make it work - probably I fail to understand how to proceed (sorry!)

So I did the following:

1) Created a "coefficient" curve according to the following logic: nm_wave=CoeffCurve_wave/ev_wave

2)The CoeffCurve_wave consists of a single number: 1239.8 [units of "nm*ev"] (the length of CoeffCurve_wave is however the same length as ev_wave).

3) Now I go to "Transform Axis" package, choose "reciprocal" and choose the coefficient wave Coeff_Curve_wave. And it does not result in nm! Seems that is simply gives the "Reciprocal" (1/ev_wave) on my top-axis! (I understand that reciprocal is 1/bottom axis...)

How to make the bottom axis in eV and the top axis in nm?

Thank you in advance.


waveguide
Posts: 10
Joined: 2009-11-25
Location: United States

OK, it worked, after using "Modified reciprocal" and the coefficient wave consisting of two values: w[0]=1239.8 and w[1]=0. Then it seems to calculate: f(x) = w[0]/(x+w[1]). Nice :)


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