Anti‐Reflective Surface Structures in Spinel Ceramic Windows

Irradiance enhancement and increased laser damage threshold in As_2S_3 moth-eye antireflective structures

“…Moth-eye structures have several advantages over traditional thin-film AR coatings, including environmental tolerance, surface adhesion, single material fabrication, minimal surface preparation, and self-cleaning via the lotus effect [7,9]. Additionally, in recent years it has been shown that in many cases periodic moth-eye structures have a higher laser-induced damage threshold (LIDT) than do traditional AR-coated surfaces [17][18][19]. In fact, the highest LIDT in fused quartz to date was recently demonstrated using moth-eye structures [20].…”