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[Optic Express] Optofluidic light modulator integrated in lab-on-a-chip


Microfluidic lenses are relevant optical components for sensing application in lab-on-a-chip devices, guaranteeing a robust alignment of the elements, a high level of compactness and tunable optical properties. In this work we describe an innovative integrated in-plane microfluidic lens. The device shows both an optimized shape capable of reducing spherical aberrations and periodically tunable optical properties. Indeed through the combination of the lens with a droplet generator module, we have been able to obtain an integrated optofluidic modulator capable of both on-demand on/off switching and periodic modulation of light. The device possesses a simple 3D geometry, which has been realized by exploiting the 3D capability of the femtosecond laser micromachining fabrication technique.

Petra Paiè, Francesca Bragheri, Theo Claude, and Roberto Osellame

Optics Express Vol. 25, Issue 7, pp. 7313-7323 (2017) •https://doi.org/10.1364/OE.25.007313

Link: https://www.osapublishing.org/oe/abstract.cfm?uri=oe-25-7-7313

#04092017 #optofluidic #sensing #labonachip #optical #aberration #laser #microfabrication

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