Femtosecond laser textured porous nanowire structured glass for enhanced thermal imaging  

作　　者：Tingni Wu Zhipeng Wu Yuchun He Zhuo Zhu Lingxiao Wang Kai Yin 吴婷妮;吴志鹏;何玉春;朱卓;王凌霄;银恺(Hunan Key Laboratory of Nanophotonics and Devices,School of Physics and Electronics,Central South University,Changsha 410083,China;State Key Laboratory of High Performance and Complex Manufacturing,College of Mechanical and Electrical Engineering,Central South University,Changsha 410083,China)

机构地区：[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

出　　处：《Chinese Optics Letters》2022年第3期153-156,共4页中国光学快报（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(Nos.52075557 and 51805553);Natural Science Foundation of Hunan Province(No.2021JJ20067);Science and Technology Innovation Program of Hunan Province(No.2021RC3011);We thank Wuhan Huaray Ultrafast Fiber Laser Technology Co,Ltd.for their support.

摘　　要：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.

关 键 词：femtosecond laser thermal radiation texture micro/nanostructures GLASS 

分 类 号：TN249[电子电信—物理电子学] TQ171.1[化学工程—玻璃工业]