Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/1339

TitleAn array of fabry-perot optical-channels for biological fluids analysis
Author(s)Minas, Graça
Ribeiro, J. C.
Martins, Júlio S.
Wolffenbuttel, R. F.
Correia, J. H.
KeywordsBiosystem
Optical filter array
Fabry-Perot
Issue date2004
PublisherElsevier B.V.
JournalSensors and Actuators A: Physical
Citation"Sensors and Actuators A : Physical". ISSN 0924-4247. 115 (2004) 362-267.
Abstract(s)This paper describes a biosystem (biological system) used to measure the concentration of biochemical substances in urine, serum, plasma or cerebrospinal fluid. Rather than just one channel, it comprises 16 optical-channels that enable the measurement of the concentration of 16 different biochemical substances. An array of 16 optical filters based on Fabry-Perot thin-films optical resonators has been designed. Each optical-channel is sensitive in a single wavelength with a full-width-half-maximum (FWHM) of 7 nm. The filter fabrication requires only four masks, used with different etch time. A commercially available band-pass optical filter with a band-pass wavelength in 450–650 nm is used. The biosystem requires only a white light source for illumination due the use of selective optical filters.
TypeArticle
URIhttp://hdl.handle.net/1822/1339
DOI10.1016/j.sna.2004.03.077
ISSN0924-4247
Peer-Reviewedyes
AccessOpen access
Appears in Collections:DEI - Artigos em revistas internacionais

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