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RESEARCH PRODUCT
Real-time and low-cost sensing technique based on photonic bandgap structures
Veronica ToccafondoJ. G. CastellóN. S. LosillaMiguel V. AndrésPere Pérez-millánJose Luis CruzJaime García-rupérezsubject
PhotonsTime FactorsMaterials sciencebusiness.industrySensorsWave-GuidesOptical DevicesPhysics::OpticsSodium ChlorideSlow lightAtomic and Molecular Physics and OpticsSlow-LightOpticsTransducerTransmission (telecommunications)Fiber Bragg gratingLimit of DetectionBroadbandTEORIA DE LA SEÑAL Y COMUNICACIONESOptoelectronicsBiosensor ArrayPhotonicsOptical filterbusinessRefractive indexdescription
[EN] A technique for the development of low-cost and high-sensitivity photonic biosensing devices is proposed and experimentally demonstrated. In this technique, a photonic bandgap structure is used as transducer, but its readout is performed by simply using a broadband source, an optical filter, and a power meter, without the need of obtaining the transmission spectrum of the structure; thus, a really low-cost system and real-time results are achieved. Experimental results show that it is possible to detect very low refractive index variations, achieving a detection limit below 2 x 10(-6) refractive index units using this low-cost measuring technique. (C) 2011 Optical Society of America[
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-01-01 |