Raphael St-Gelais, Jonathan Masson, Yves-Alain Peter
{"title":"High resolution integrated microfluidic Fabry-Perot refractometer in silicon","authors":"Raphael St-Gelais, Jonathan Masson, Yves-Alain Peter","doi":"10.1109/OMEMS.2008.4607806","DOIUrl":null,"url":null,"abstract":"We present a high resolution, robust and low cost integrated refractometer for microfluidic systems. The device is made of two Bragg reflectors vertically etched in silicon to form an in-plane Fabry-Perot filter. Liquids are injected in the cavity through a microfluidic channel and the variation of the refractive index induces a shift of the resonance wavelength. A sensitivity of 920 nm/RIU (refractive index units) and a resolution of less than 10-3 are obtained and are in good agreement with optical simulations. This resolution is, to our knowledge, the lowest ever reported for an integrated microfluidic Fabry-Perot refractometer.","PeriodicalId":402931,"journal":{"name":"2008 IEEE/LEOS International Conference on Optical MEMs and Nanophotonics","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2008-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2008 IEEE/LEOS International Conference on Optical MEMs and Nanophotonics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/OMEMS.2008.4607806","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
We present a high resolution, robust and low cost integrated refractometer for microfluidic systems. The device is made of two Bragg reflectors vertically etched in silicon to form an in-plane Fabry-Perot filter. Liquids are injected in the cavity through a microfluidic channel and the variation of the refractive index induces a shift of the resonance wavelength. A sensitivity of 920 nm/RIU (refractive index units) and a resolution of less than 10-3 are obtained and are in good agreement with optical simulations. This resolution is, to our knowledge, the lowest ever reported for an integrated microfluidic Fabry-Perot refractometer.