Refractive Index Sensing With Laser-Induced Surface Waveguides

Laura Rammelt; W. Dieter Engel; Federico J. Furch; Alexandre Mermillod-Blondin

doi:10.1364/CLEO_SI.2023.SW4P.2

CLEO 2023
Technical Digest Series (Optica Publishing Group, 2023),
paper SW4P.2
•https://doi.org/10.1364/CLEO_SI.2023.SW4P.2

Refractive Index Sensing With Laser-Induced Surface Waveguides

Laura Rammelt, W. Dieter Engel, Federico J. Furch, and Alexandre Mermillod-Blondin

CLEO: Science and Innovations 2023

San Jose, CA United States
7–12 May 2023
ISBN: 978-1-957171-25-8

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Light-matter Interactions: Applications (SW4P)

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L. Rammelt, W. D. Engel, F. J. Furch, and A. Mermillod-Blondin, "Refractive Index Sensing With Laser-Induced Surface Waveguides," in CLEO 2023, Technical Digest Series (Optica Publishing Group, 2023), paper SW4P.2.

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Abstract

We fabricate surface waveguides in a-SiO₂ by direct laser writing. These waveguides can be used as refractive index sensors with extinction ratios as high as 5 dB/mm and sensitivities exceeding 1000 dB/RIU at 800 nm.

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