Author Affiliations
Abstract
1 Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha 410083, China
2 State Key Laboratory of High Performance and Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
Infrared (IR) thermal imaging has aroused great interest due to its wide application in medical, scientific, and military fields. Most reported approaches for regulating thermal radiation are aimed to realize IR camouflage and are not applicable to enhance thermal imaging. Here, we introduce a simple and effective method to process porous glass by femtosecond laser scanning, where distributed nanocavities and nanowires were produced, which caused improvement of the treated glass emissivity. The as-prepared sample possessed better IR thermal radiation performance but lower transmittance to visible light. We also demonstrated its applicability by placing it in different backgrounds, where the IR image temperature of laser-treated glass was closer to the actual environment, and this strategy may provide a new vision for enhanced thermal imaging.
femtosecond laser thermal radiation texture micro/nanostructures glass Chinese Optics Letters
2022, 20(3): 033801
1 中南大学物理与电子学院超微结构与超快过程湖南省重点实验室, 湖南 长沙 410083
2 中南大学高性能复杂制造国家重点实验室, 湖南 长沙 410083
水下气体浸润性表面在许多领域都具有重要的作用,近年来受到了各国研究人员的密切关注。飞秒激光微纳制造技术作为一种全新的非接触式加工手段,近年来在调控材料表面水下气体浸润性方面进行了许多探索性研究。总结飞秒激光微纳制造技术在水下气体浸润性表面的最新研究进展,从水下超疏气表面、水下超亲气表面、水下超疏气-超亲气转换以及水下气体运输四个方面进行阐述,最后结合当前的研究状况指出该领域目前所存在的问题以及对前景的展望。
激光光学 飞秒激光 微纳制造 水下气体浸润性 超疏气 超亲气 激光与光电子学进展
2020, 57(11): 111418
介绍了机载光电探测航姿信息融合的必要性，阐述了航姿信息融合算法的基本原理，具体描述了融合算法的实现过程，算法主体思路是通过3次坐标系的转换，将目标在传感器图像上的位置坐标变换到一个稳定的不受飞机姿态影响的基准坐标系里，并给出了坐标系变换的确切数学表达式.最后给出了一个采用该算法的系统的实际演示效果和详细数据，证明了算法的有效性.
光电探测 光电图像 航姿信息融合算法 基准坐标系 electric-optical detection electric-optical image attitude heading data fusion algorithm fiducial reference frame
