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Waveguide-Coupled Mid-Infrared GeSn Membrane Photodetectors on Silicon-on-Insulator
C\'edric Lemieux-Leduc, Mahmoud R. M. Atalla, Simone Assali, Nicolas Rotaru, Julien Brodeur, St\'ephane K\'ena-Cohen, Oussama Moutanabbir, Yves-Alain Peter
https://arxiv.org/abs/2507.19269

Waveguide-Coupled Mid-Infrared GeSn Membrane Photodetectors on Silicon-on-Insulator
Silicon photonics has thrived in telecommunications over recent decades, and its extension to the mid-infrared range has the potential to unlock valuable opportunities for sensing, imaging, and free-space communications. With this perspective, germanium-tin (GeSn) alloy has been extensively investigated as a silicon-compatible semiconductor with bandgap tunability that covers this entire spectral range. Indeed, a variety of GeSn-based high-performance optoelectronic devices have been demonstrat…