Journal
OPTICS EXPRESS
Volume 20, Issue 4, Pages 4189-4197Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.20.004189
Keywords
-
Categories
Funding
- New Century Excellent Talents in University (NCETU)
- Nature Science Funding of China
- NSFC [61177090]
- SERC ASTAR
Ask authors/readers for more resources
We propose and demonstrate a novel electrical tracing-assisted dual-microring resonator-based optical sensor system in silicon-on-insulator substrate. The system comprises one microring resonator-based sensing element and another microring resonator-based tracing element integrated with electrical controller. The resonance wavelength shift of sensing microring induced by the refractive index change is traced and determined by direct voltage supply of the electrical tunable tracing microring. Such optical sensing system eliminates the traditional wavelength-scanning method thus provide a cost effective sensing scheme. Proof-of-principle demonstration by testing polyelectrolyte multilayer shows the sensitivity of similar to 4.0 mW/ng.mm(-2) and the detection limit of similar to 5.35 pg/mm(2). (C)2012 Optical Society of America
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available