| Authors: | A. Dabrowska, T. Zhai, N. De Moerlooze, J. Missinne, B. Kuyken, G. van Steenberge, B. Lendl | | Title: | On-chip mid-infrared Ge-on-Si platform for liquid sensing | | Format: | International Conference Presentation | | Publication date: | 11/2025 | | Journal/Conference/Book: | 2025 IEEE Photonics Conference (IPC)
| | Volume(Issue): | p.paper MG4.5 (2 pages) | | Location: | Singapore, Singapore | | Citations: | Look up on Google Scholar
| | Download: |
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Abstract
We introduce a Ge-on-Si sensor optimized at 6.9 µm for liquid-phase analysis. We evaluated its performance for aqueous ammonium detection, achieving a 108 ppm LOD and 10⁻³ AU noise floor. These results confirm its feasibility for real-time, continuous, reagent-free monitoring of ionic species in water. Related Research Topics
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