Untuned resonance traced gas sensing
Patent
·
OSTI ID:1493332
Methods and systems for detecting a gas or liquid in an environment include measuring a reference signal at each of a set of wavelengths by passing a signal at each wavelength through a reference cell having a gas or liquid to be detected. A sensing signal is measured at each of the plurality of wavelengths by coupling each wavelength to a ring resonator in the environment. A set of wavelengths that correspond to an absorption curve of the gas or liquid to be detected is determined. A concentration of the gas or liquid to be detected in the environment is determined based on amplitudes of the sensing signal at each of the set of wavelengths.
- Research Organization:
- USDOE Advanced Research Projects Agency - Energy (ARPA-E)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AR0000540
- Assignee:
- INTERNATIONAL BUSINESS MACHINES CORPORATION (Armonk, NY)
- Patent Number(s):
- 10,168,275
- Application Number:
- 15/603,084
- OSTI ID:
- 1493332
- Country of Publication:
- United States
- Language:
- English
Rapid and sensitive trace gas detection with continuous wave Optical Parametric Oscillator-based Wavelength Modulation Spectroscopy
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journal | September 2010 |
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