Highly-scalable fabrication of photonic crystal fiber-tip refractive index sensors

Luca Picelli; Anne van Klinken; Gustav G. Lindgren; Kaylee D. Hakkel; Francesco M. Pagliano; Petrus J. van Veldhoven; Rob W. van der Heijden; Andrea Fiore

doi:10.1117/12.2577630

5 March 2021 Highly-scalable fabrication of photonic crystal fiber-tip refractive index sensors

Luca Picelli, Anne van Klinken, Gustav G. Lindgren, Kaylee D. Hakkel, Francesco M. Pagliano, Petrus J. van Veldhoven, Rob W. van der Heijden, Andrea Fiore

Author Affiliations +

Proceedings Volume 11695, High Contrast Metastructures X; 116950B (2021) https://doi.org/10.1117/12.2577630
Event: SPIE OPTO, 2021, Online Only

Abstract

We developed a method to easily transfer optical structures from a semiconductor substrate to a fiber-tip facet without the need for glues and preserving the pristine or functionalized condition of the structure surface. An opening is etched on the back of the fabrication wafer and the structure is suspended via breakable support. The transfer is achieved by mechanical contact with the fiber facet. Using a photonic crystal structure designed for high vertical coupling at the Gamma point a reflectance fiber-tip sensor with refractive index sensitivity of 120 nm/RIU has been assembled and could be further functionalized for application in biosensing.

Conference Presentation

Citation Download Citation

Luca Picelli, Anne van Klinken, Gustav G. Lindgren, Kaylee D. Hakkel, Francesco M. Pagliano, Petrus J. van Veldhoven, Rob W. van der Heijden, and Andrea Fiore "Highly-scalable fabrication of photonic crystal fiber-tip refractive index sensors", Proc. SPIE 11695, High Contrast Metastructures X, 116950B (5 March 2021); https://doi.org/10.1117/12.2577630

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