Nanostructures versus thin films in the design of antireflection coatings

Uwe B. Schallenberg

doi:10.1117/12.896841

3 October 2011 Nanostructures versus thin films in the design of antireflection coatings

Uwe B. Schallenberg

Proceedings Volume 8168, Advances in Optical Thin Films IV; 81681N (2011) https://doi.org/10.1117/12.896841
Event: SPIE Optical Systems Design, 2011, Marseille, France

Abstract

It is shown how the discussion about antireflection coatings for the visible and near infrared region has been changed dramatically with recent experimental applications of nanostructures that realize media with effective refractive indices less than the 'magic border' of 1.34. Using the so-called binary optics as an example, a glass-like nanostructure similar to the moth-eye structure is theoretically designed as antireflection coating for the visible and near infrared region. With the aim of this example and considering only known design principles of thin-film optics, a connection between nanostructures and thin films regarding their alternative or combined application as antireflection coatings is presented. As summary regarding the nanostructures vs. thin film discussion, a reference list is presented that cited different types of antireflection coatings presented in the past 70 years with respect to their applications, designs, and deposition technologies.

Citation Download Citation

Uwe B. Schallenberg "Nanostructures versus thin films in the design of antireflection coatings", Proc. SPIE 8168, Advances in Optical Thin Films IV, 81681N (3 October 2011); https://doi.org/10.1117/12.896841

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