The use of the photoacoustic effect to gauge the concentration of gases is an attractive
alternative in the realm of optical detection methods. Even though the effect has been …

Analogous to most new methods in science, photoacoustic spectroscopy (PAS) grew out of
an advance in technology, in this case the dramatic improvement in novel light sources …

The unequivocal detection of CO2 is important in many situations, like in the living
environment, plant cultivation and the conservation of cultural relics and archives. Due to …

An all-optical photoacoustic (PA) system for trace gas detection of ethylene (C 2 H 4) in high-
concentration methane (CH 4) background has been developed based on dual light sources …

Farm-to-table operations produce, transport, and deliver produce to consumers in very
different ways than conventional, corporate-scale agriculture operations. As a result, the time …

The prospect of using methanol as an alternative fuel for vehicles in China is enticing
because of its good combustion properties, low production cost, and renewable capacity, but …

Atmospheric pollution is one of the worst threats to modern society. The consequences
derived from different forms of atmospheric pollution vary from the local to the global scale …

A sensor for the detection of ethylene (C 2 H 4) in combustion exhaust based on a mid-
infrared wavelength modulation spectroscopic technique was constructed using a …

Nitrous oxide (N 2 O) is an important greenhouse gas. Emissions of this gas are generated
by the combustion of fossil fuels, mainly in the transportation sector worldwide. Biofuel is a …

In this work we present a laser photoacoustic arrangement for the detection of the important
greenhouse gas methane. A quantum-cascade laser and a differential photoacoustic cell …