Focusing Lens
Application ID: 57621
Optical lenses of millimeter size cannot easily be analyzed with the Electromagnetic Waves, Frequency Domain interface on standard workstations due to the large number of finite element mesh elements required.
This model explains how the Electromagnetic Waves, Beam Envelopes interface can be used to analyze a plano-convex lens with a 1 mm focal length. The results are compared with the Fresnel diffraction formula. The two results agree very well.
Learn more in the blog post titled "How to Use the Beam Envelopes Method for Wave Optics Simulations"
This model example illustrates applications of this type that would nominally be built using the following products:
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.