For methane, it claims a detection limit of 50 parts per ... Known as the "molecular fingerprint" region of the spectrum, the mid-infrared offers two wide atmospheric spectral windows where ...

The spectrum of methane is like a fingerprint ... a van that can detect even very tiny amounts of methane, infrared cameras to inspect pipes, and a drone outfitted with a small laser.

Potential methane generation calculated using average ... However, it avoids a narrow stretch along the infrared spectrum called the “atmospheric window region”. In normal conditions, the ...

Methane is a main component ... Its filter allows infrared wavelengths between 3.2 and 3.4 micrometers on the electromagnetic spectrum to pass through to the sensor. For reference, humans only ...

The researchers then used reflection-absorption infrared spectroscopy (RAIRS) to detect methane dissociation on the various sites of the Pt(211) crystal. RAIRS is a nonintrusive technique that ...

The sensing platform uses a fiber-connected 1650 nm semiconductor laser and an indium gallium arsenide (InGaAs) near-infrared detector to monitor methane concentrations using tunable diode laser ...

The approach, called tunable infrared laser direct absorption spectroscopy, detects the ratio of methane isotopes, which can provide a “fingerprint” to differentiate between two common origins: ...

Meanwhile at the University of Colorado Boulder, Gregory Rieker and colleagues have created an infrared spectroscopy system that can detect small amounts of methane at kilometre distances. While there ...

NASA’s powerful infrared space telescope ... first time we had seen such an obvious methane spectral feature with our eyes in a transiting exoplanet spectrum, not too much unlike what could ...

Methane and other organic compounds are ... One of the immediate legacies of the 2008 paper was that it unlocked infrared spectroscopy with the Hubble telescope. “There had been some earlier ...