Publications by authors named "Jonas Leuermann"
Article Synopsis
- Integrated photonic sensors have gained popularity in biosensing for detecting low molecule concentrations without labels.
- Interferometric sensors offer high detection limits but may lose sensitivity if not properly calibrated.
- The new coherent detection method achieves very low detection limits in protein tests while allowing the use of cost-effective laser sources, showcasing its potential for practical applications.
Waveguide-based photonic sensors provide a unique combination of high sensitivity, compact size and label-free, multiplexed operation. Interferometric configurations furthermore enable a simple, fixed-wavelength read-out making them particularly suitable for low-cost diagnostic and monitoring devices. Their limit of detection, i.
View Article and Find Full Text PDFPhotonic biosensors offer label-free detection of biomolecules for applications ranging from clinical diagnosis to food quality monitoring. Both sensors based on Mach-Zehnder interferometers and ring resonators are widely used, but are usually read-out using different schemes, making a direct comparison of their fundamental limit of detection challenging. A coherent detection scheme, adapted from optical communication systems, has been recently shown to achieve excellent detection limits, using a simple fixed-wavelength source.
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