Design of four-layer tri-wavelength silica antireflective coatings with vector method containing absentee layer

摘要

A four-layer tri-wavelength silica antireflective (AR) coating with 100% transmittance simultaneously at 1064?nm, 532?nm and 355?nm was designed based on the vector method combined with absentee layer. The type of this AR coating is λ/2-λ/4-λ/2-λ/4 (λ0?=?532?nm): 1.0|L A1 H A2|1.46 with nL?=?1.19, nA1?=?1.31, nH?=?1.44 and nA2?=?1.33.