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题名	低振荡色散镜的设计、制备及性能研究
作者	刘加
文献子类	硕士
导师	王胭脂
关键词	色散镜 Dispersive Mirror 群延迟色散 Group Delay Dispersion 低色散振荡 Low Dispersion Oscillation 超短脉冲 Ultrashort Pulse
其他题名	Design, fabrication and performance analysis of low ripple dispersive mirrors
英文摘要	色散镜具有反射率高、色散补偿可精确控制等优点，是超短脉冲系统中必不可少的色散补偿元件。超短脉冲技术的不断发展使得脉宽不断变窄，对色散镜的色散补偿提出了更多、更高、更新的要求，须同时满足超宽带及色散振荡自由控制，但是它们之间又相互制约。色散镜的群延迟色散随着色散补偿带宽和目标色散值的不断增大，振荡更加剧烈。本文针对减小色散镜的群延迟色散振荡这一问题，围绕低振荡色散镜的设计、制备、性能测试及应用开展了以下工作： 基于啁啾膜系结合减反膜能够更好地匹配入射介质（空气）阻抗从而减小色散镜的色散振荡这一设计思想，并借助折射率分别为1.09和1.20的低折射率SiO2材料实现减反作用，分别设计了雕塑结构低振荡色散镜和溶胶-凝胶低振荡色散镜，两种色散镜都能在680-920nm波长范围内提供平坦的?200fs2的群延迟色散补偿；基于群延迟色散互补思想，结合多类对称腔初始结构，设计了低振荡色散镜对，能够在680-920nm波长范围内，提供平坦的?200fs2的群延迟色散补偿。 采用双离子束溅射技术制备低振荡色散镜对；成功利用倾斜沉积技术制备出低折射率SiO2雕塑薄膜材料，并能够将SiO2材料的折射率控制在1.09-1.15（@800nm）；通过双离子束溅射技术结合倾斜沉积技术，先使用双离子束溅射技术制备啁啾膜系，在此基础上再倾斜沉积一层折射率约为1.09@800nm的SiO2膜层，制备得到了雕塑结构低振荡色散镜。 通过分光光度计和白光干涉仪对制备得到的低振荡色散镜进行光谱性能和色散性能的测试。将低振荡色散镜对应用于充氩气空芯光纤钛宝石激光器系统中，作为色散补偿元件，能够将100.8fs的激光脉冲压缩至19fs；将雕塑结构低振荡色散镜单独应用于空芯光纤钛宝石激光器系统中，能够将100.8fs的激光脉冲压缩至16fs。其中，雕塑结构低振荡色散镜是首次成功制备并应用于钛宝石激光器系统中。; Dispersive mirrors have the advantages of high reflectivity and precise control of dispersion compensation. They are essential dispersion compensation components in ultrashort pulse systems. The continuous development of ultra-short pulse technology makes the pulse width continuously narrower, and more, higher, and newer requirements for the dispersion compensation of the dispersive mirror are required. At the same time, it is necessary to satisfy the ultra-wideband and dispersion oscillation free control, but they are mutually restricted. The group delay dispersion of the dispersive lens is more intense as the dispersion compensation bandwidth and the target dispersion increase. In this paper, in order to reduce the dispersion oscillation of the dispersive mirrors, the following work is carried out around the design, preparation, performance testing and application of the low-oscillation dispersive mirror: The design concept that the anti-reflection film based on the deciduous system can better match the impedance of the incident medium (air) to reduce the dispersion oscillation of the disperser mirror, and realizes the reduction by means of the low refractive index SiO2 material with the refractive indexes of 1.09 and 1.20 respectively. Reactively, the sculptural structure low-oscillation dispersive mirror and the sol-gel low-oscillation dispersive mirror were respectively designed. Both of the dispersive mirrors can provide a flat, -200 fs2 group delay dispersion compensation in the wavelength range of 680-920 nm; based on the group delay dispersion compensation. The idea, combined with the initial structure of many types of symmetric cavities, designed a pair of low-oscillation dispersive mirrors to provide a flat, group-delayed dispersion compensation of ?200 fs2 in the 680-920 nm wavelength range. A low-oscillation dispersive mirror pair was prepared using a dual ion beam sputtering technique; a low refractive index SiO2 sculpting thin film material was successfully prepared using an oblique deposition technique, and the refractive index of the SiO2 material was controlled at 1.09-1.15 (@800 nm); The beam sputtering technology combined with the oblique deposition technique, first using the dual ion beam sputtering technology to prepare the cerium film, and then on the basis of a tilt and deposit a layer of SiO2 film with a refractive index of about 1.09@800nm to obtain a low sculpture structure-oscillating dispersive mirror. The spectrophotometer and white light interferometer were used to test the spectral performance and dispersion performance of the prepared low-oscillation dispersive mirror. The low-oscillation dispersive mirror is used in an argon-filled hollow fiber Ti:sapphire laser system as a dispersion compensation element and can compress the 100.8fs laser pulse to 19fs; the low-oscillation dispersive mirror structure is applied to the hollow-core optical fiber alone In a sapphire laser system, a 100.8 fs laser pulse can be compressed to 16 fs. Among them, the sculptural structure low-oscillation dispersive mirror was successfully prepared for the first time and applied to a Ti:Sapphire laser system.
学科主题	光学工程
内容类型	学位论文
源URL	[http://ir.siom.ac.cn/handle/181231/31102]
专题	中国科学院上海光学精密机械研究所
作者单位	中国科学院上海光学精密机械研究所
推荐引用方式 GB/T 7714	刘加. 低振荡色散镜的设计、制备及性能研究[D].

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