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Major progress in optical graphene gas sensors based on microfibers.
| Sensor Type | Max Sensitivity | Dynamic Range | Response Time | Reference |
|---|---|---|---|---|
| Photothermal spectroscopy | 2 ppb | six orders | minutes | [96] |
| Graphene-based SPR on fiber | 1 ppm | NG | minutes | [92] |
| Ultrasensitive plasmonic sensors based on metal | ~ppm | NG | NG | [97] |
| Visible spectroscopy | 5 ppb | NG | minutes | [95] |
| Microfiber-based graphene optomechanic resonator | 1 ppb | five orders | seconds | [53] |
