MICROFLUIDIC chip for spectroscopic and refractometric analysis

• Type: Article in International Conference Proceedings Book
• Date: 2012

Authors

Ribeiro, AR (Author) Other; Martinho, I (Author) Other; Tillak, JB (Author) Other; Bernacka Wojcik, I (Author) Other; Barata, D (Author) Other; Jorge, PAS (Author) FCUP; Aguas, H (Author) Other; Oliva, AG (Author) Other

Conference proceedings International

Title: 22ND INTERNATIONAL CONFERENCE ON OPTICAL FIBER SENSORS, PTS 1-3

22nd International Conference on Optical Fiber Sensors (OFS)

Beijing, PEOPLES R CHINA, OCT 15-19, 2012

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Scopus - 1 Citation

Other information

Authenticus ID: P-002-EEK

DOI: 10.1117/12.975248

Abstract (EN): In this paper an optofluidic chip for simultaneous determination of refractive index and acquisition of absorption or fluorescent spectra is described. The system comprises a microfluidic channel with multiple inlet/outlet for sample handling and a dual fiber optic probe, standing face to face across the channel, for the optical measurements. An FBG based Fabry Perot cavity, and a Braggmeter, allow for interferometric measurement of the refractive index while external illumination and a multimode fiber enable acquisition of the absorption/fluorescence spectra with a CCD spectrometer. Preliminary results showing the viability of simultaneous measurement are obtained from the characterization of mixed samples with distinct refractive index and dye concentrations.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4