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27 February 2015 Integrated opto-microfluidics platforms in lithium niobate crystals for sensing applications
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Abstract
In micro-analytical chemistry and biology applications, droplet microfluidic technology holds great promise for efficient lab-on-chip systems where higher levels of integration of different stages on the same platform is constantly addressed. The possibility of integration of opto-microfluidic functionalities in lithium niobate (LiNbO3) crystals is presented. Microfluidic channels were directly engraved in a LiNbO3 substrate by precision saw cutting, and illuminated by optical waveguides integrated on the same substrate. The morphological characterization of the microfluidic channel and the optical response of the coupled optical waveguide were tested. In particular, the results indicate that the optical properties of the constituents dispersed in the fluid flowing in the microfluidic channel can be monitored in situ, opening to new compact optical sensor prototypes based on droplets generation and optical analysis of the relative constituents.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Giacomo Bettella, Gianluca Pozza, Annamaria Zaltron, M. V. Ciampolillo, N. Argiolas, C. Sada, M. Chauvet, and B. Guichardaz "Integrated opto-microfluidics platforms in lithium niobate crystals for sensing applications", Proc. SPIE 9365, Integrated Optics: Devices, Materials, and Technologies XIX, 936517 (27 February 2015); https://doi.org/10.1117/12.2077843
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