We report a compact mid-infrared (MIR) photothermal spectroscopic ethane (C_2H_6)
sensor with a hollow-core negative-curvature-fiber (HC-NCF) gas cell. The HC-NCF …

Methane is an important greenhouse gas and tropospheric ozone precursor. Simultaneous
observation of ethane with methane can help identify specific methane source types …

We apply an inverse problem approach to locating a known gas source in a desert setting
from simultaneous measurements of gas concentration and wind data. We use a random …

The development of a continuous wave (CW), thermoelectrically cooled (TEC), distributed
feedback (DFB) laser diode based spectroscopic trace-gas sensor for ultra-sensitive and …

We report a mid-infrared (MIR) photothermal laser spectroscopy system for multi-component
gas sensing with a single broadband anti-resonant hollow-core fiber gas cell. Three MIR …

In this work, we present the first demonstration of a gas sensor utilizing the Wavelength
Modulation Spectroscopy technique and a mid-IR guiding Antiresonant Hollow-Core Fiber …

The paper describes various techniques for measuring emissions to the atmosphere from
geologically stored carbon dioxide, from point, line and area sources at scales of metres to …

We describe a method for detecting, locating and quantifying sources of gas emissions to
the atmosphere using remotely obtained gas concentration data; the method is applicable to …

We report a multicomponent photothermal gas sensor with a conjoined-tube hollow-core
optical fiber gas cell. With a common Fabry-Perot probe interferometer and a common gas …

Advances in natural gas extraction technology have led to increased activity in the
production and transport sectors in the United States and, as a consequence, an increased …