Analysis of the spatial filter of a dielectric multilayer film reflective cutoff filter-combination device

• 作者: 易葵 王胭脂 章瑛 邵建达 隋展 齐红基
• 来源期刊: 中国物理B（英文版）
• 关键词: dielectric multilayer film laser-induced damage threshold
• 年，卷（期）: 2015,（10）
• 页码范围: 104216-1-104216-4
• 页数: 1页
• 语种: 英文
• DOI: 10.1088/1674-1056/24/10/104216

摘要

The experiment setup of a reflecting combination device, which has more advantages than a transmitting combination device, is designed in this study. To achieve angular spectrum selectivity, only one type of reflective component is needed, so difficulties of design and preparation are reduced. A dielectric multilayer film is applied to the reflective component, and the long wave-pass coating stacks of the structure are designed. To achieve high stopband transmittance and reduce electric field intensity at a wavelength of 1053 nm, an objective function is proposed for designing an optimized coating. The final optimized coating has good spectral characteristics and a high laser-induced damage threshold. A dielectric multilayer film with high reflectance plays an important role in preparing and applying a dielectric multilayer film reflecting cutoff filter-combination device.