高效热电转换技术是热光伏新型能源发展与实际应用的关键性技术。本项目以热电转换技术中微结构热辐射的光谱控制为应用方向，针对目前热辐射光谱控制技术的现状（以涂、黏、镀等制备方式为主），利用微纳结构显著的非经典物理性质和超快激光微纳制造技术的优势，提出在热辐射体表面直接制备微纳尺度拓扑特征结构的基体-结构一体化解决方案。基于微纳结构具有的小尺寸效应、表面等离子共振以及介电限域效应，开展辐射体表面不同结构模式光谱特性的基础研究；应用飞秒激光直写与脉冲扫描曝光烧蚀的组合式加工方法，并辅以超快激光溅射气相沉积的表面改性作用，在热辐射基体表面制备出具有宽频域辐射和选择性窄带光谱控制的亚波长拓扑特征结构；通过理论模拟与光谱实验，揭示表面特征结构与受抑制（受控）热辐射波长之间的关联规律，建立与现有光谱控制技术互补的新的技术途径，以适应未来特殊工作环境下诸如微飞行器、潜航器及辐射换能与光热利用的工程应用需求。

High-efficient thermoelectric conversion is a critical technique for the development and practical application of new thermophotovoltaic energy resource. Based on the spectrum control in the thermoelectric conversion through microstructures and the current situation of spectrum control mainly by smear, sticky, and plate methods in the thermal radiation, in this project, we propose an incorporate solution that the micro/nanoscale topologic characteristic structures are directly fabricated on the surface of thermal radiation body by means of the superiority of ultrafast laser micro/nano fabrication and the non-classical physical properties of micro and nano structures. We will use the small size, surface plasmon resonance, and dielectric confinement effects for the fundamental researches of spectrum properties contained in different surface structure pattern of radiation body. By employing the method of fs laser direct writing combining with exposure ablation of pulse scanning as well as the surface modification by ultrafast laser sputtering gas-phase deposition, the subwavelength topologic characteristic structures with wide frequency domain radiation and selectable narrow spectrum band control are directly fabricated on the surface of thermal radiation body with the help of modification by ultrafast laser sputtering gas-phase deposition. The dependence of controlled thermal radiation wavelength and surface topologic characteristic structures will be revealed and consequently the new approach supplementing to the existing control techniques of thermal radiation spectrum is expected to come true by theoretical simulation and spectra experiments, by which the demand for the future engineering applications such as the stealth techniques of micro-aircraft or underwater vehicle with durable and convertible spectra controlling, and photo-heat utilization of radiations.