Dual-Comb Spectroscopy Detection of Trace Gases in the Field (IMAGE)

National Institute of Standards and Technology (NIST)

Dual-Comb Spectroscopy Detection of Trace Gases in the Field

Caption

Illustration showing how trace gases are detected in the field using a mobile dual-frequency comb laser spectrometer. The spectrometer sits in the center of a circle which is ringed with retroreflecting mirrors. Laser light from the spectrometer (yellow line) passes through a gas cloud, strikes the retroreflector and is returned directly to its point of origin. The data collected are used to identify leaking trace gases (including methane), as well leak locations and their emission rates.

Credit

Stephanie Sizemore and Ian Coddington/NIST

Usage Restrictions

None

License

Licensed content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.