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Define a material with refractive index as a function of wavelength

(joined April 2019)
Participant

Hi

I want to define an extra layer in optigrating which the refractive index is changing with wavelength (Gold).
There is anyway to do it.

Responses (1):

    • #51376
      Ali Elrashedy
      Participant

      Hi

      I want to define an extra layer in optigrating which the refractive index is changing with wavelength (Gold).
      There is anyway to do it.

    • #51378
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      Steve Dods
      Participant

      in OptiGrating, the refractive index can be a function of wavelength, the software already expects Sellmeier formulas. The problem with gold is the actual value of the refractive index. Fibres with gold will not be accurately modelled by LP modes. OptiGrating uses only LP modes, therefore one cannot expect accurate modelling of gratings in fibres made with gold in OptiGrating.

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