5 May 2015 Integrated optics on Lithium Niobate for sensing applications
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In micro-analytical chemistry and biology applications, optofluidic technology holds great promise for creating efficient lab-on-chip systems where higher levels of integration of different stages on the same platform is constantly addressed. Therefore, in this work the possibility of integrating opto-microfluidic functionalities in lithium niobate (LiNbO3) crystals is presented. In particular, a T-junction droplet generator is directly engraved in a LiNbO3 substrate by means of laser ablation process and optical waveguides are realized in the same material by exploiting the Titanium in-diffusion approach. The coupling of these two stages as well as the realization of holographic gratings in the same substrate will allow creating new compact optical sensor prototypes, where the optical properties of the droplets constituents can be monitored.
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Annamaria Zaltron, Annamaria Zaltron, Giacomo Bettella, Giacomo Bettella, Gianluca Pozza, Gianluca Pozza, R. Zamboni, R. Zamboni, M. Ciampolillo, M. Ciampolillo, N. Argiolas, N. Argiolas, C. Sada, C. Sada, Sebastian Kroesen, Sebastian Kroesen, Michael Esseling, Michael Esseling, Cornelia Denz, Cornelia Denz, "Integrated optics on Lithium Niobate for sensing applications", Proc. SPIE 9506, Optical Sensors 2015, 950608 (5 May 2015); doi: 10.1117/12.2178457; https://doi.org/10.1117/12.2178457

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