Basic principles and fabrication results →Japanese 【Basic principles of antireflection structured surface】 Normally, light reflects at the surface where refractive index changes abruptly. Effective refractive index of subwavelength microstructure increases gradually from the index of air to that of the substrate so that the gradual change in the refractive index reduces the reflection of light at the substrate surface. 【Fabrication results: Microstructure formed on fused silica】 Flat substrate Curved substrate (lens) Copyright 2004 (C) ATT'S corporationl all rights reserved.