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Slot-waveguide biochemical sensor

Carlos A. Barrios, Kristinn B. Gylfason, Benito Sánchez, Amadeu Griol, H. Sohlström, M. Holgado, and R. Casquel

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Abstract

We report an experimental demonstration of an integrated biochemical sensor based on a slot-waveguide microring resonator. The microresonator is fabricated on a Si3N4–SiO2 platform and operates at a wavelength of 1.3 μm. The transmission spectrum of the sensor is measured with different ambient refractive indices ranging from n=1.33 to 1.42. A linear shift of the resonant wavelength with increasing ambient refractive index of 212 nm/refractive index units (RIU) is observed. The sensor detects a minimal refractive index variation of 2×10−4 RIU.

© 2007 Optical Society of America

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Corrections

Carlos A. Barrios, Kristinn B. Gylfason, Benito Sánchez, Amadeu Griol, H. Sohlström, M. Holgado, and R. Casquel, "Slot-waveguide biochemical sensor: erratum," Opt. Lett. 33, 2554-2555 (2008)
https://opg.optica.org/ol/abstract.cfm?uri=ol-33-21-2554
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