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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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  • 1

    Photonic chip utilizes air for waveguide to enhance gas detection.

  • 2

    Achieves sensitivity to parts-per-billion levels.

  • 3

    45-fold increase in sensing efficiency over traditional sensors.

  • 4

    Detects acetylene at 330 ppb with fast results.

  • 5

    Operates in near-infrared spectrum for compatibility with telecom.

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    Potential for diverse applications in environmental and health monitoring.

  • 7

    Device compact, measuring only 1.2 cm long.

Original Source(s)

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

  • March 31, 2026

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