基于4.0～4.8μm红外增透截止滤光片的研制
Preparation of Cut-off Filter of Infrared Penetration Based on 4.0～4.8μm
张翔 1张薇1
作者信息
摘要
详细阐明了干涉滤光片中截止滤光片膜系的设计理论、设计步骤和相关重要公式,并从实际应用出发,阐述了 4.0～4.8 μm红外增透截止滤光片的设计过程.通过现代膜系设计软件优化提升了膜层性能,最终制备出了达到设计指标要求的滤光片.外增透截止滤光片在截止带1.6～3.5 μm平均透过率≤3.5％,透射带4.0～4.8 μm平均透过率≥90％,滤光片膜层能耐受从-190 ℃～60℃温度冲击,显示了设计的准确性和制备工艺的可行性.
Abstract
The design theory,design steps and related important formula of the cut-off filter membrane of inter-ference filter are illustrated in detail,and from the practical application,the 4.0～4.8 μm infrared penetration cut-off filter design process is expounded.Through the modern membrane design software optimization,the membrane lay-er performance is improved,and the filter to meet the requirements of the design index is prepared.The mean trans-missivity of the infrared cut-off filter is less than 3.5％at 1.6～3.5 μm cut-off band,is more than 90％at 4.0～4.8 μm cut-off band,and the filter layer can withstand temperature shocks from-190 ℃ to 60 ℃,showing the accuracy of the design and the feasibility of the preparation process.
关键词
红外增透/干涉滤光片/截止滤光片/耐温度冲击/膜系设计与工艺Key words
infrared penetration/interference filter/cut-off filter/temperature shock resistance/membrane de-sign and process引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据