@inbook{560b3439138a47a1ab69fbd7d5964b01,
title = "Al2O3 microresonators for passive and active sensing applications",
abstract = "The Al2O3 waveguide technology was explored for sensing applications. Passive microring resonators with a quality factor in air of 3.2×105 were developed with a bulk refractive index sensitivity of ~100 nm/RIU and limit of detection of ~10-6 RIU. These were functionalized to detect the biomarker rhS100A4 from urine down to concentrations of 3 nM. Furthermore, Al2O3:Yb3+ microdisk lasers were realized that exhibited single mode lasing operation in water. Their lasing wavelength was tuned by varying the bulk refractive index and a bulk refractive index sensitivity of ~20 nm/RIU with a LOD of ~3×10-6 was achieved.",
keywords = "Diode pumped lasers, Distributed feedback lasers, Microdisk lasers, Optical pumping, Refractive index, Sensor performance",
author = "{de Goede}, Michiel and Lantian Chang and Meindert Dijkstra and Raquel Obreg{\'o}n and Javier Ram{\'o}n-Azc{\'o}n and Elena Mart{\'i}nez and Laura Padilla and Jaume Adan and Francesc Mitjans and Garc{\'i}a-Blanco, {Sonia M.}",
year = "2018",
month = jan,
day = "1",
doi = "10.1364/SENSORS.2018.SeTu4E.1",
language = "English",
isbn = "978-1-943580-43-9",
volume = "Part F110-Sensors 2018",
series = "Advanced Photonics 2018 (BGPP, IPR, NP, NOMA, Sensors, Networks, SPPCom, SOF)",
publisher = "Optical Society of America",
pages = "SeTu4E.1",
booktitle = "Optical Sensors, Sensors 2018",
note = "Optical Sensors 2018 ; Conference date: 02-07-2018 Through 05-07-2018",
}