Microstructured Antireflecting Coatings for Infrared Wavelengths
Application ID: 99011
The design of antireflecting coating plays an important role to increase the transmission of the infrared light that propagates through optical structures such as lens and windows.
In this model, we showcase how different bulk structures such as Si and CZT that has the bulk transmittance of 70% and 79% respectively, can be increased to more than 90% by etching the surface of the bulk layer with a particular microstructure. The results matched well with Hobbs et al. paper.
Relevant blog: https://www.comsol.co.in/blogs/designing-antireflecting-microstructures-for-infrared-applications/
Reference: Douglas S. Hobbs, Bruce D. MacLeod, "Design, fabrication, and measured performance of anti-reflecting surface textures in infrared transmitting materials," Proc. SPIE 5786, Window and Dome Technologies and Materials IX, (18 May 2005); doi: 10.1117/12.604532
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 Tabella delle Funzionalità 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.