High-Q silk fibroin whispering gallery microresonator

被引:55
|
作者
Xu, Linhua [1 ,2 ]
Jiang, Xuefeng [1 ]
Zhao, Guangming [1 ]
Ma, Ding [3 ]
Tao, Hu [4 ,5 ]
Liu, Zhiwen [3 ]
Omenetto, Fiorenzo G. [4 ]
Yang, Lan [1 ,2 ]
机构
[1] Washington Univ St Louis, Elect & Syst Engn Dept, St Louis, MO 63130 USA
[2] Washington Univ St Louis, Inst Mat Sci & Engn, St Louis, MO 63130 USA
[3] Penn State Univ, Dept Elect Engn, University Pk, PA 16802 USA
[4] Tufts Univ, Dept Biomed Engn, Medford, MA 02155 USA
[5] Univ Texas Austin, Dept Mech Engn, Austin, TX 78712 USA
来源
OPTICS EXPRESS | 2016年 / 24卷 / 18期
基金
美国国家科学基金会;
关键词
LABEL-FREE DETECTION; MICROCAVITY; NANOPARTICLES;
D O I
10.1364/OE.24.020825
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We have experimentally demonstrated an on-chip all-silk fibroin whispering gallery mode microresonator by using a simple molding and solution-casting technique. The quality factors of the fabricated silk protein microresonators are on the order of 10(5). A high-sensitivity thermal sensor was realized in this silk fibroin microtoroid with a sensitivity of -1.17 nm/K, that is 8 times higher than previous WGM resonator-based thermal sensors. This opens the way to fabricate biodegradable and biocompatible protein based microresonators on a flexible chip for biophotonics applications. (C) 2016 Optical Society of America
引用
收藏
页码:20825 / 20830
页数:6
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