Structural coloration of non-metallic surfaces using ductile-regime vibration-assisted ultraprecision texturing  

作　　者：Jianjian Wang Yaoke Wang Jianfu Zhang Yang Yang Ping Guo 

机构地区：[1]Department of Mechanical Engineering,Tsinghua University,Beijing,100084,China [2]Department of Mechanical Engineering,Northwestern University,Evanston,60208,USA [3]School of Mechanical Engineering and Automation,Harbin Institute of Technology,Shenzhen,518055,China [4]State Key Laboratory of Digital Manufacturing Equipment&Technology,Huazhong University of Science and Technology,Wuhan,430074,China

出　　处：《Light(Advanced Manufacturing)》2021年第4期89-100,共12页光（先进制造）（英文）

基　　金：Jianjian Wang would like to acknowledge the fellowship support received from the Alexander von Humboldt Foundation;Jianfu Zhang gratefully acknowledges the financial support for this research received from the National Natural Science Foundation of China(Grant No.51761145103);Yang Yang would like to acknowledge the financial support received from the Open Research Foundation of the State Key Laboratory of Digital Manufacturing Equipment and Technology,China(Grant No.DMETKF2020011).

摘　　要：Structural coloration stemming from microstructure-induced light interference has been recognized as a promising surface colorizing technology,based on its potential in a wide array of applications,including high-definition displays,anti-counterfeiting,refractive index sensing,and photonic gas and vapor sensing.Vibration-assisted ultraprecision texturing using diamond tools has emerged as a high-efficiency and cost-effective machining method for colorizing metallic and ductile surfaces by creating near-wavelength microstructures.Although theoretically possible,it is extremely challenging to apply the vibration-assisted texturing technique directly to colorize non-metallic and brittle materials(e.g.,silicon and acrylic polymers)with high-quality,crack-free microstructures owing to the intrinsic brittleness of these materials.This study demonstrates the feasibility of direct texturing near-wavelength-scale gratings on brittle surfaces in the ductile regime to fabricate crack-free micro/nanostructures.The effects of tool vibration trajectories on the ductile-to-brittle transition phenomena were investigated to reveal the cutting mechanism of ductile-regime texturing and optimize the processing windows.Structural coloration on silicon and acrylic surfaces was successfully demonstrated by creating programmable and pixelated diffraction gratings with spacing values ranging from 0.75 to 4μm.

关 键 词：REGIME METALLIC SURFACES 

分 类 号：TN3[电子电信—物理电子学]