Highly Sensitive Athermal Optical Microring Sensor Based on Intensity Detection

Autor:	Zhiping Zhou, Huaxiang Yi, David S. Citrin
Rok vydání:	2011
Předmět:	Detection limit Analyte Materials science business.industry System of measurement Condensed Matter Physics Atomic and Molecular Physics and Optics Resonator Signal-to-noise ratio Optics Interference (communication) Q factor Electrical and Electronic Engineering business Biosensor
Zdroj:	IEEE Journal of Quantum Electronics. 47:354-358
ISSN:	1558-1713 0018-9197
DOI:	10.1109/jqe.2010.2090036
Popis:	An athermal optical sensor using intensity detection based on silicon microring resonators (MRs) is presented. The thermally independent sensing is realized in the sensing zone within the temperature range ±5 K. The significant phase difference in the presence of an analyte between the low-Q coupled MRs is further sensitized through an interference-based intensity sensing scheme. Better performance of the coupled MR sensor compared to conventional microring sensors is demonstrated using transfer-matrix theory. For a measurement system of 30 dB signal-to-noise ratio, a detection limit of 6.8 ×10-7 recognition indexing unit is predicted.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::79f81038438ed25179ece5a9c68b73e4 https://doi.org/10.1109/jqe.2010.2090036 Zobrazit plný text záznamu