Title :
Ultra-highly sensitive digital optical sensor based on cascaded Si-nanowire rings
Author :
Hu, Jing ; Dai, Daoxin
Author_Institution :
State Key Lab. for Modern Opt. Instrum., Zhejiang Univ., Hangzhou, China
Abstract :
Digital double-ring sensor based on silicon nanowires is demonstrated experimentally for the first time. An ultrahigh sensitivity δλ/δn up to 1.46 × 105 nm/RIU is achieved. And the detection limit is close to 2 × 10-6.
Keywords :
elemental semiconductors; high-speed optical techniques; nanowires; optical sensors; silicon; Si; cascaded silicon-nanowire rings; detection limit; ultrahighly sensitive digital optical sensor; Biomedical optical imaging; Nanowires; Optical planar waveguides; Optical sensors; Sensitivity; Silicon;
Conference_Titel :
Group IV Photonics (GFP), 2010 7th IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-6344-2
DOI :
10.1109/GROUP4.2010.5643387
