软/硬电光材料电光热耦合效应与光辐射调控机制

Electro-optic modulation technology has wide application background in the domain of optical communication, optical sensing, optical display, high power solid laser, smart glass and solar photovoltaic technology. In this topic, a new though, namely electrical modulation technique of thermo-optic effect, is put forward to deal with the thermal compensation problem which is common in the electro-optics control technology. By means of combination of theory and experiment, the coupling electric-thermo-optical mechanism under electrical field in electro-optic material is investigated. Electro-optic effect and thermal-optic effect are to be taken into consideration to build the corresponding mathematical model and experimental method, and to achieve the optical response characteristics of electro-optic material under outer electrical field. By data regression and inversion, the method or model equation for electrical modulation of thermal-optic effect is obtained. Finally, the investigation system will be developed for electro-optical material which comprised the electro-optic-thermal coupling mechanism description, electro-thermal modulation model or method experimental observation and verification means. The issue of research is expected to provide strong support to thermo-optic compensation scheme of electro-optic control technology. From the academic point of view, materials, communication, electrical, thermal, optics and many other fields are involving in the research of this problem with the obvious discipline and it is important value to promote the development of related disciplines.

基于电光效应的电光调控技术在光通信、光传感、光显示、大功率固体激光器、智能玻璃、太阳能光伏等技术领域具有广泛应用背景。本课题对电光调控技术中普遍存在的热光效应补偿问题提出了一个新的思路，即热光效应的电调控方法。项目主要目的是拟通过理论与实验相结合的手段，深入开展电光材料外加电场作用下电-光-热耦合机制的研究，考虑电光效应和热光效应构建相应的数理模型和实验方法，获得外加电场作用下电光材料的光辐射响应特性；通过数据回归和反演，获得热光效应的电调控模型方程或方法；最终形成电光热耦合机理描述、电调控模型方法及实验观测验证手段间相互相闭合的、系统的热光效应电调控机制研究体系。该问题的研究可望对电光调控技术的热光补偿方案提供有力支撑，从学术角度看，这一问题的研究涉及材料、电学、热学、光学等多个学科领域，具有明显学科交叉性，对促进相关学科发展也具有重要价值。

基于电光效应的电光调控技术在光通信、光传感、光显示、大功率固体激光器、智能玻璃、太阳能光伏等技术领域具有广泛应用背景。项目执行过程中研究内容围绕软硬电光材料电光热耦合效应与光辐射调控机制的研究主题，开展了“电光材料在外加电场作用下电光热耦合效应与电调控机制研究”、“ 外电场作用下离子液光传输与调控特性研究”、“有序结构复合材料光谱辐射特性调控机制研究”三个方面研究，取得的成果主要包括：（1）发展了硬质电光材料电光热耦合机制与电热调控研究方法，获得了硅基半导体电光热多场耦合特性规律及电调控方案；(2)发展了外加电场作用下离子液体光折射/透射特性的实验方法，获得了五种不同咪唑型离子液体近红外光谱折射率和吸收系数随外加电场的变化规律，设计了外加电场下离子液体附面层透射特性的红外显微测量方案，测量获得了甲基丙基咪唑碘盐外加电场、空间位置对其光透特性的影响规律；（3）提出了“近场耦合避雷针效应”的有序结构复合材料光谱特性调控方案，并通过实验验证了该方案的可行性，为超构材料光谱特性调控提供了新的途径；在红外-激光兼容隐身应用研究方面，项目设计了全金属结构多带超构材料吸收体，可在1.064μm波长处实现高吸收，达到激光隐身，在3-5和8-14μm实现低发射，达到红外隐身的目的。发表学术论文 11 篇，其中 SCI 收录 10 篇，2018年以来SCI他引33次，授权发明专利 4 项。本项目研究结果，为进一步深入研究软硬材料电光热耦合与光谱特性主动调控机制提供了重要的认识基础和技术手段。