Integrated opto-microfluidics platforms in lithium niobate crystals for sensing applications

Giacomo Bettella; Gianluca Pozza; Annamaria Zaltron; M. V. Ciampolillo; N. Argiolas; C. Sada; M. Chauvet; B. Guichardaz

doi:10.1117/12.2077843

27 February 2015 Integrated opto-microfluidics platforms in lithium niobate crystals for sensing applications

Giacomo Bettella, Gianluca Pozza, Annamaria Zaltron, M. V. Ciampolillo, N. Argiolas, C. Sada, M. Chauvet, B. Guichardaz

Proceedings Volume 9365, Integrated Optics: Devices, Materials, and Technologies XIX; 936517 (2015) https://doi.org/10.1117/12.2077843
Event: SPIE OPTO, 2015, San Francisco, California, United States

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.

Citation Download Citation

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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