Agile plasmo-photonic interferometric sensor with liquid dielectric loading for temperature sensing and thermo optic coefficient measurements

AMO is pleased to announce a new publication in the IEEE Sensors Journal emerging from the GRACED project. The article presents an advanced plasmo‑photonic interferometric sensing platform capable of highly precise temperature measurements and accurate extraction of thermo‑optic coefficients. This innovative sensor was developed through a strong collaboration between AMO GmbH, RWTH Aachen University, Aristotle University of Thessaloniki, the University of Ioannina, and Université Bourgogne Europe.

The demonstrated sensor achieves an exceptional temperature sensitivity of 23.86 nm per degree Celsius when operated with a seventy‑percent ethanol–water solution, exceeding previously reported values for photonic integrated circuits by more than an order of magnitude. It also enables reliable determination of thermo‑optic coefficients with an error of only 13.1 percent. Another key advantage of the platform is its compatibility with various liquids without requiring any sample or device preparation, allowing fast, flexible, and efficient sensing.

The publication, titled Agile plasmo-photonic interferometric sensor with liquid dielectric loading for temperature sensing and thermo optic coefficient measurements, is now available online.

This work was supported by the EU projects ICT GRACED and AMBROSIA, and we congratulate all contributing authors on this achievement.