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Access to function n_interp

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Hi everyone

When I Add a new Material from the library (e.g. Pd or Cu), then I can see its real and refractive indexes, n and k respectively.

They function n which is a function of the wavelength is calculated automatically using a local table. The function is called n_interp for the real part.

Now when I want to use the refractive index in an expression (e.g. as an expression under "derived values") I don't know how to access this function.

I would like to write an expression like

n_interp_Pd(lambda) / n_interp_Cu(lambda)

But as the refractive index of Cu is calculated similarly and the interpolation function of Cu is also just called n_interp, I don't know how to access these two functions.

I solved the problem creating two interpolation functions under "global definitions" where I copied the local tables from Pd and from Cu and called them n_Cu and n_Pd. Now I can access these functions.

But I think this step is unnecessary since these functions are exact copies of already existing functions...

Does somebody know how to avoid this additional step?

Best regards

Gabriel

2 Replies Last Post 11.07.2017, 06:07 GMT-4

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Posted: 8 years ago 21.10.2016, 08:38 GMT-4
Aaah now I found it:

When you would insert an expression, just hit the + sign (insert expression) and go to

Model/Definitions/Material functions

There you find all the interpolation functions.
Aaah now I found it: When you would insert an expression, just hit the + sign (insert expression) and go to Model/Definitions/Material functions There you find all the interpolation functions.

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Posted: 7 years ago 11.07.2017, 06:07 GMT-4
Updated: 7 years ago 11.07.2017, 06:07 GMT-4
Can you explain for me more detail about how we can access to function n_interp. Thank you !
Can you explain for me more detail about how we can access to function n_interp. Thank you !

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