Protein-based soft micro-optics fabricated by femtosecond laser direct writing  

作　　者：Yun-Lu Sun Wen-Fei Dong Li-Gang Niu Tong Jiang Dong-Xu Liu Lu Zhang Ying-Shuai Wang Qi-Dai Chen Dong-Pyo Kim Hong-Bo Sun 

机构地区：[1]State Key Laboratory on Integrated Optoelectronics,College of Electronic Science and Engineering,Jilin University,Changchun 130012,China [2]College of Physics,Jilin University,Changchun 130023,China [3]National Center of Applied Microfluidic Chemistry,Department of Chemical Engineering,Pohang University of Science and Technology,Pohang 790-784,Korea

出　　处：《Light(Science & Applications)》2014年第1期342-348,共7页光（科学与应用)（英文版）

基　　金：HBS thanks the National Science Foundation of China(Grant No.90923037);the National Basic Research Program of China(973 Program)(Grant No.2011CB013005)for support;WFD thanks the National Science Foundation of China(Grant Nos.91123029,61077066,61137001 and 61127010);the 863 Project of China(Grant No.2012AA063302)for financial support.

摘　　要：In this work,we report a novel soft diffractive micro-optics,called‘microscale kinoform phase-type lens(micro-KPL)’,which is fabricated by femtosecond laser direct writing(FsLDW)using bovine serum albumin(BSA)as building blocks and flexible polydimethylsiloxane(PDMS)slices as substrates.By carefully optimizing various process parameters of FsLDW(e.g.,average laser power density,scanning step,exposure time on a single point and protein concentration),the as-formed protein micro-KPLs exhibit excellent surface quality,well-defined three-dimensional(3D)geometry and distinctive optical properties,even in relatively harsh operation environments(for instance,in strong acid or base).Laser shaping,imaging and other optical performances can be easily achieved.More importantly,micro-KPLs also have unique flexible and stretchable properties as well as good biocompatibility and biodegradability.Therefore,such protein hydrogel-based micro-optics may have great potential applications,such as in flexible and stretchable photonics and optics,soft integrated optical microsystems and bioimplantable devices.

关 键 词：femtosecond laser direct writing MICRO-OPTICS PROTEIN SOFT 

分 类 号：O43[机械工程—光学工程]