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Suspended Waveguide Chip Sniffs Gases at Parts-per-Billion Levels

Air-clad photonic design boosts light-gas interaction and heat retention for ultra-sensitive on-chip sensing

  • March 31, 2026

  • 1 min

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The innovative photonic chip leverages an air-based waveguide to enhance gas detection sensitivity, achieving parts-per-billion accuracy and setting a new standard for on-chip sensors. By improving light interaction and reducing heat dissipation, its performance has increased by 45-fold compared to traditional designs. This compact chip can detect acetylene at 330 ppb and operates efficiently in the near-infrared spectrum, making it suitable for various applications including environmental monitoring and medical diagnostics.

Original Source(s)

Suspended Waveguide Chip Sniffs Gases at Parts-per-Billion Levels

  • March 31, 2026

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