A recent scientific publication highlights important progress in the development of germanium-on-silicon photonic integrated circuits (PICs) operating in the long-wave infrared (LWIR) spectral range.
The paper, titled “Suspended Germanium-on-Silicon Photonic Integrated Circuits Operating in the Long-Wave Infrared and Their Use for Ethanol Sensing,” presents work carried out within the SYMPHONY project, with contributions from the AEOLUS Project as part of the broader ECREAM collaboration.
This research explores the design and implementation of suspended germanium-on-silicon PICs, enabling operation in the LWIR region. This wavelength range is particularly important for sensing applications, as many gases exhibit strong absorption signatures, making it highly suitable for environmental monitoring and industrial sensing.
By leveraging advanced photonic integration techniques, the work demonstrates how compact, chip-scale devices can be used for ethanol sensing, highlighting the potential of integrated photonics to deliver efficient, scalable, and high-performance sensing solutions.
Within AEOLUS, this contribution supports the development of next-generation photonic technologies for gas sensing applications, reinforcing the project’s role in advancing integrated photonics platforms for real-world use cases.
This publication reflects the strong collaboration between projects and partners working at the intersection of photonics and sensing technologies, contributing to the advancement of European research and innovation.
🔗 An early access version of the paper is available via ACS:
http://pubs.acs.org/doi/10.1021/acsphotonics.6c00154