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Article Abstract
The development of compact, CMOS-compatible gas sensors is critical for advancing real-time environmental monitoring and industrial diagnostics. In this study, we present a detailed numerical investigation of integrated photonic waveguide designs-such as ridge and slot-optimized for overtone-based gas spectroscopy in the near-infrared range. By evaluating both the evanescent-field confinement and curvature-induced losses across multiple silicon-on-insulator platforms, we identify optimal geometries that maximize light-analyte interactions while minimizing bending attenuation. Our findings provide essential design guidelines for high-performance, low-footprint gas sensors.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12389844 | PMC |
| http://dx.doi.org/10.3390/s25165092 | DOI Listing |
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