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Simulating Ronchi Ruling


Hello!

I am trying to place a Ronchi ruling style grating into my optical system in ZEMAX, but am unsure how to start! I am new to ZEMAX and any help would be greatly appreciated. 

Best answer by Mark.Nicholson

Hi Sara,

You can use the diffraction grating surface (or objecty in NS mode) and simply configure it as a low-spatial frequency grating. Or, use a slide surface (object) to import a bitmap of black and white lines at the approriate point in the system.

 

- Mark

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Mark.Nicholson
Luminary
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Hi Sara,

You can use the diffraction grating surface (or objecty in NS mode) and simply configure it as a low-spatial frequency grating. Or, use a slide surface (object) to import a bitmap of black and white lines at the approriate point in the system.

 

- Mark


  • Single Emitter
  • June 21, 2021

Hi Mark!

Could you help explain how you would configure the driffraction grating as a low-spatial frequency grating? I have tried to look up what that means but cannot seem to find an explaination for how to do this in ZEMAX.

Thank you for your help!


Mark.Nicholson
Luminary
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Hi Sara

All I mean is to use the lines/um parameter of the difraction grating surface, and enter whatever frequency is appropriate. A ronchi might be 0.1 lines/micron to 0.01 lines/micron for example.

- Mark

 


  • Single Emitter
  • June 21, 2021

Hi Mark!

Thank you, that makes sense. Do you know if this is possible to configure in sequential mode? I see the lines/um column in non-sequential mode, but cannot seem to find this in sequential mode.

Thanks again,

Sara


Mark.Nicholson
Luminary
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Use a Diffraction grating or any of the other diffractive surfaces and you'll see it in the parameter columns.


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