The application of different types of acoustic resonators such as pipes, cylinders, and
spheres in photoacoustics is considered. This includes a discussion of the fundamental …

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 …

The vast majority of gaseous chemical substances exhibit fundamental vibrational
absorption bands in the mid-infrared spectral region (≈ 2–25 µm), and the absorption of …

An exceptional property of photo-acoustic spectroscopy is the zero-background in
wavelength modulation configuration while the signal varies linearly as a function of …

In this paper, we demonstrate a flexible leaky hollow core fiber (LHCF) photoacoustic (PA)
gas sensor based on an embedded acoustic resonant structure. The sensor employs a part …

Update based on the original article by Frans JM Harren, Gina Cotti, Jos Oomens, Sacco te
Lintel Hekkert, Encyclopedia of Analytical Chemistry,© 2000, John Wiley & Sons, Ltd. time …

Many different techniques, such as UV/vis absorption, IR spectroscopy, fluorescence and
Raman spectroscopy are routinely applied in chemical (micro-) analysis and chemical …

Light absorption by aerosols is one of the most uncertain parameters associated with the
direct and indirect aerosol effects on climate and is one of the most difficult quantities to …

Trace gas sensing systems have to meet several requirements like high detection sensitivity
and selectivity, multicomponent capability, field suitability, etc. In this respect devices based …

Gas concentration monitoring by photoacoustic spectroscopy is reviewed from the point of
view of practical applicability. Major challenges, which stem from the complexity of the …