Enhancing Signal Quality of Evanescent-Wave Multimode Fiber Optic Sensor Using Diffuse Excitation Light

摘要：

In a typical evanescent-wave-based optical device,whether using fiber optics, free space or a lab-on-a-chip, the signal is not only weak but often mixed with a strong stray excitation (Ex) light. This leads to a requirement for a highperformance filter and detector assembly for signal recovery and thus adds a major cost to the entire system. We propose a non-Lambertian type light diffuser, offering a highly efficient novel use of Ex power to simultaneously achieve a stronger fluorescent signal and reduce the stray Ex power level.Particular attention is given to how this universal concept can be applied to a lab-on-a-chip device.

关键词： Spectroscopy Fluorescence and luminescence,Diffusers Sources Fiber-optic components Fiber-optic sensors Fiber-optic sources and detectors Lab-on-a-chip.

作者: Jianjun Ma Wojtek J.Bock

作者单位: Centre de recherche en photonique, Département dinformatique et dingénierie,Université du Québec en Outaouais, P.O.Box 1250, Station B, Gatineau, Québec J8X 3X7, Canada

会议类型: 国际会议

会议名称: 第八届电子封装技术国际会议(2007 8th International Conference on Electronics Packaging Technology ICEPT2007)

会议地点: 上海

会议语种:英文

页码: 508-512

在线出版日期: 2007-08-14（万方平台首次上网日期，不代表论文的发表时间）