Ron Willey

Ron Willey has more than 50 years experience as individual contributor and director of optical system and optical coating development, design, and production. He eaches short courses internationally, and is author of many technical papers and five books. Mr. Willey graduated from the Massachusetts Institute of Technology, having majored in optical instrumentation. He also earned a masters degree in computer science from the Florida Institute of Technology. He has taught optics at the Florida Institute of Technology, the University of Wisconsin, and Martin Marietta Corporation. He has taught optical thin film design, development, and production at SPIE, the Society of Vacuum Coaters, Florida Institute of Technology, and the University of Wisconsin.

FIGURE 1. Reflection vs. wavelength is shown (a) for uncoated NBK7 glass (blue curve), for a single layer of MgF2 (index 1.38, green curve), and for a single layer with a 1.233 refractive-index material (red curve). Reflection curves are also shown (b) for an uncoated glass with refractive index of 1.9 and with a QWOT layer of index 1.38, and for multilayer coatings (c) including a two-layer AR design (V-Coat) as a coating for a laser at 580 nm and a three-layer broadband antireflection (BBAR) coating.

Thin-film Coatings: Understanding key design principles of antireflection coatings

Oct. 13, 2016
Whether for single-wavelength or broadband operation, antireflection coatings are the most common coatings used in the world, with performance possibilities and limitations dictated...