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|Title:||An array of fabry-perot optical-channels for biological fluids analysis|
Ribeiro, J. C.
Martins, Júlio S.
Wolffenbuttel, R. F.
Correia, J. H.
Optical filter array
|Journal:||Sensors 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.|
|Appears in Collections:||DEI - Artigos em revistas internacionais|