![]() The coatings made available in any single design in OpticStudio are defined in the chosen Coating File as listed in System Explorer.Files. The coating we want to use will transmit 40% of the ray energy and reflect 60% of the energy, independent of the wavelength, incident angle, etc. The absorption coefficient is computed automatically via A = 1.0 – R – T, to conserve energy. Ideal coatings are defined only by the intensity, transmission, and reflection coefficients, and are independent of ray wavelength or angle of incidence. For one ideal coating, the syntax is simply: Like all coatings in OpticStudio, ideal coatings are created in a coating file consisting of sections of data defining materials, tapers, and coatings. ![]() However, we will limit our discussion in this article to constructing and applying simple, ideal coatings to the objects in our system. ![]() OpticStudio can model any type of thin-film coating, including multilayer dielectric and metallic coatings. Currently, there are no coatings and/or scattering profiles defined on any single surface of the Rectangular Volume.Īn initial Ray Trace without considering polarization produces a a centered ray with a total power of 1W on the detector.ĭefining and Applying Coatings in OpticStudio is a topic unto itself and is covered in detail in the “Defining Coatings” section in the Help Files. The ray from the source perfectly reflects back onto itself and is incident on the detector plane. Upon opening the file, you should find that a single Source Ray is incident onto the front face of a Rectangular Volume made of material type MIRROR. To avoid the redundancy of having to create the file from scratch, please download the attached file. Using three Non-Sequential Objects, we may quickly and easily demonstrate how to apply Lambertian scattering and ideal coatings to produce the desired effects. We wish to use the face of a Rectangular Volume to simulate a partially reflective (60% reflective) surface that scatters 80% of the reflected light in a Lambertian distribution, leaving the other 20% as specularly reflected. Starting with the attached file, we will create and use an ideal coating in order to utilize the appropriate coating/scattering properties that create a partially reflective surface. In particular, partially reflective (or optionally transmissive) surfaces can be modelled that diffusely scatter only a fraction of the incident energy in a specific distribution. In Non-Sequential mode, coatings may be added to any object surface and edited so that the surface has the required reflective and transmissive properties. OpticStudio provides users with the ability to make their system as realistic as possible through the use of coating data. Demonstrated here are cases of scattering combined with partial absorption, as well as partial specular reflection. This article describes how to model a partially reflective surface which diffusely scatters a fraction of incident energy into a specific distribution.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |