Print Email Facebook Twitter Liquid core integrated ring resonator Title Liquid core integrated ring resonator Author Testa, G. Huang, Y. Zeni, L. Sarro, P. Bernini, R. Faculty Electrical Engineering, Mathematics and Computer Science Department Microelectronics Date 2011-01-17 Abstract We report the design and the fabrication of an integrated optofluidic ring resonator based on liquid core antiresonant reflecting optical waveguide (ARROW) operating around ?=635nm with a water filled core (nc=1.33). This waveguide permits a strong coupling between light and analyte as the same microchannel can be used for delivering sample and for confining light. A rectangular-shaped ring resonator has been realized by using four 90-bent waveguides and an multimode interference coupler is used for coupling light from the input bus waveguide to the resonator. The resulting device is very compact, with a total length of 2.5 mm and a required liquid volume of about 0.11nl. The device has been simulated with a two dimensional finite-difference time-domain method for different refractive index core nc=1.32 (methanol) and nc=1.43 (dimethylformamide). Moreover, we carried out optical measurements by measuring the transmitted spectrum from the output bus waveguide in both cases. The experimental results confirm that ring with a good quality factor (Q?800) can be achieved in good agreement with the numerical results. Subject ring resonatoroptofluidicsliquid core waveguidesoptical sensors To reference this document use: http://resolver.tudelft.nl/uuid:7bf3c3cd-6d07-4422-b9ef-b8c86acd6d33 DOI https://doi.org/10.1117/12.874806 Publisher SPIE ISSN 0277-786X Source https://doi.org/10.1117/12.874806 Source Proceedings of SPIE, 2011 vol. 7943 Part of collection Institutional Repository Document type conference paper Rights (c)2011 Testa, G., Huang, Y., Zeni, L., Sarro, P., Bernini, R. Files PDF 2011-7943.Testa.pdf 792.44 KB Close viewer /islandora/object/uuid:7bf3c3cd-6d07-4422-b9ef-b8c86acd6d33/datastream/OBJ/view