White Pupil Échelle Spectrograph
Application ID: 54881
Échelle spectrographs are commonly used in astronomy for high-resolution analyses of stellar atmospheres and for precision Doppler velocimetry. This tutorial simulates a "white pupil" form of this instrument. It makes use of several parts from the COMSOL Part Library and demonstrates the creation of a complex fully parameterized geometry. Two grating components are included, and the use of the Diffraction Order node is demonstrated. The échelle grating is used in high order and a parametric sweep across several orders (with several wavelengths in each order) is made and the resulting ray and échelle diagrams are generated.
This model example illustrates applications of this type that would nominally be built using the following products:Ray Optics Module
however, additional products may be required to completely define and model it. Furthermore, this example may also be defined and modeled using components from the following product combinations:
The combination of COMSOL® products required to model your application depends on several factors and may include boundary conditions, material properties, physics interfaces, and part libraries. Particular functionality may be common to several products. To determine the right combination of products for your modeling needs, review the Specification Chart and make use of a free evaluation license. The COMSOL Sales and Support teams are available for answering any questions you may have regarding this.