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Flexible Waveguides Exhibit Low Light Loss for Biosensors, Wearables

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Tiny, flexible waveguides, made in a clear silicone commonly used for biomedical applications, were created by a research team at École Fédérale de Lausanne (EPFL). To create the waveguides, the team used multiphoton laser direct writing, a microfabrication method in which a light-sensitive chemical is polymerized with a focused laser to create finely detailed 3D structures. Researchers optimized a laser writing process to create extremely narrow waveguides in PDMS. The new waveguides could be used to transport light in a variety of sensors, lab-on-a-chip systems,...Read full article

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