M Yang, Z Wang, H Sun, M Hu, PT Yeung, Q Nie… - Applied Physics B, 2024 - Springer
We report a mid-infrared quartz-enhanced photoacoustic sensor for highly sensitive nitrous oxide (N2O) detection using a 4.56 µm quantum cascade laser (QCL) with a butterfly …
Nitrous oxide (N2O) is an important anthropogenic greenhouse gas emitted into the atmosphere that can contribute to ozone destruction. Considering its environmental …
Following the Kyoto protocol, all signatory countries must provide an annual inventory of greenhouse-gas emission including N2O. This fact associated with the wide variety of …
We report on the performance of a widely tunable continuous wave mode-hop-free external- cavity quantum cascade laser operating at λ~ 5.2 µm combined with cavity ring-down …
We have developed a frequency-comb spectrometer that records 35-nm (4 THz) spectra with 2-pm (250 MHz) spectral sampling and an absolute frequency accuracy of 2 kHz. We …
Nitrous oxide is an important greenhouse gas and there is a need for sensitive techniques to study its distribution in the environment at concentrations near equilibrium with the …
Different configurations of photoacoustic (PA) setups for the online-measurement of gaseous N2O, employing semiconductor lasers at 2.9 and 4.5 μm, were developed and tested. Their …
FG Linhares, MA Lima, GA Mothe… - Biomass Conversion …, 2019 - Springer
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 …