How To Model a Partially Reflective and Partially Scattering Surface

By Dan Hill
Published 1 November 2005
Stray Light , Thin Film Coatings , Polarization and Thin Film Coatings
Rating: Unrated

Summary and References

A partially reflective scattering surface may be constructed in ZEMAX by applying an ideal coating in addition to a specific scattering profile. Underneath the Coating/Scattering tab of the Object Properties dialog in Non-Sequential ZEMAX, various coatings and scattering profiles can be applied to different faces (known as Coating/Scatter Groups) of an object.

By accounting for polarization, split rays, and scatter rays, the options for modeling different scattering type surfaces are virtually endless.

References

ZEMAX Optical Design Program User’s Guide, ZEMAX Development Corporation

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5 Responses to "How To Model a Partially Reflective and Partially Scattering Surface"

an unknown user Rating: ratingfull

said this on 11 Dec 2005 2:44:01 PM PDT

Nice simple practicle example.

(Reply to this comment)

an unknown user Rating: ratingfull

said this on 13 Mar 2006 5:03:26 AM PDT

Does the object need to be a volume?

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Mark Nicholson Rating: ratingfull

said this on 13 Mar 2006 9:16:10 AM PDT

To Comment 2: Scattering may occur at any ray-surface intersection. Clearly bulk scattering requres a volume, but surface scattering can be applied to any object. - Mark

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taotao Rating: ratingfull

said this on 12 Jun 2006 1:41:39 AM PDT

I think this article is very helpful.

(Reply to this comment)

Raja Bayanna Rating: ratingfull

said this on 18 Sep 2006 8:46:19 AM PDT

This is fine for introductory level, And very help ful to go furthur. But Here we are specifying the amount light scattered in specular direction. There may be few application in which you may be knowing this scatter function. What about the cases where I knew only the rms surface roughness of the mirror? How to know the amount of light scattered into specular direction. Thanks... Raja

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