Femtosecond laser shockwave peening ablation in liquids for hierarchical micro/nanostructuring of brittle silicon and its biological application

作     者：Dongshi Zhang Liang-Chun Wu Masashi Ueki Yoshihiro Ito Koji Sugioka Dongshi Zhang;Liang-Chun Wu;Masashi Ueki;Yoshihiro Ito;Koji Sugioka

作者机构：RIKEN Center for Advanced PhotonicsWakoSaitama 351-0198Japan Nano Medical Engineering LaboratoryRIKEN Cluster for Pioneering Research2-1 HirosawaWakoSaitama 351-0193Japan Department of Chemical Science and EngineeringSchool of Materials and Chemical TechnologyTokyo Institute of TechnologyTokyoJapan Emergent Bioengineering Materials Research TeamRIKEN Center for Emergent Matter Science2-1 HirosawaWakoSaitama 351-0198Japan 

出 版 物：《International Journal of Extreme Manufacturing》 (极端制造（英文）)

年 卷 期：2020年第2卷第4期

页      面：29-47页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 0817[工学-化学工程与技术] 08[工学] 0807[工学-动力工程及工程热物理] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0802[工学-机械工程] 0803[工学-光学工程] 0811[工学-控制科学与工程] 

基　　金：the financial support by RIKEN FY2019‘Emerging Collaboration Seed’of‘Collaboration Seed Fund’(Grant No.100948-201901010000-340130) 

主　　题：femtosecond laser shock peening ablation shockwaves macroporous enéchelon crack striations brittle materials stem cell culture 

摘      要：This paper presents a new technique,termed femtosecond laser shock peening ablation in liquids(fs-LSPAL),which can realize simultaneous crack micro/nanomanufacturing and hierarchical micro/nanolaser ablation,giving rise to the formation of diverse multiscale hierarchical structures,such as macroporous ratcheted structures and enéchelon microfringes decorated with parabolic *** analysis of surface morphologies,many phenomena have been confirmed to take place during fs-LSPAL,including enéchelon cracks,nanostriation,ripple densification,crack branching,and selective formation of high spatial frequency laser-induced periodic surface structures of 100–200 nm in *** a high laser power of 700 mW,fs-LSPAL at scanning speeds of 0.2 mm s^-1 and 1 mm s^-1 enables the generation of height-fluctuated and height-homogeneous hierarchical structures,*** height-fluctuated structures can be used to induce‘colony’aggregates of embryonic EB3 stem *** 200 mW,fs-LSPAL at 1 mm s^-1 is capable of producing homogeneous tilt macroporous structures with cracked structures interleaved among them,which are the synergistic effects of bubble-induced light refraction/reflection ablation and *** shown in this paper,the conventional laser ablation technique integrated with its self-driven unconventional cracking under extreme conditions expands the horizons of extreme manufacturing and offers more opportunities for complex surface structuring,which can potentially be used for biological applications.