Sensors are perhaps the most important and integral components of our modern society.
With global warming and environmental pollution garnering ever-increasing attention, as …

Laser absorption spectroscopy combined with spectral analysis has been extensively
investigated in detection and measurements of gas samples because of their broad …

A mid-infrared laser absorption sensing method has been developed to quantify gas
properties (temperature, pressure, and species density) at MHz measurement rates, with …

This paper presents a laser-based absorption technique for measuring temperature and CO
concentration in high-pressure shock tubes. Two fundamental vibrations of CO (v"= 0, P8 …

Since the first publications related to microstructured optical fibers (MOFs), the development
of optical fiber sensors (OFS) based on them has attracted the interest of many research …

This paper proposes an improved wavelength modulation spectroscopy with the 2nd
harmonics normalized by the 1st harmonics (WMS-2f/1f) spectral fitting method using the …

Laser-absorption spectroscopy (LAS) is widely used for providing non-intrusive and
quantitative measurements of gas properties (such as temperature and absorbing species …

Chemical species tomography (CST) has been deployed in a wide range of applications in
the last two decades for multi-dimensional measurement of gaseous flow fields. CST offers …

A unique spectroscopic strategy has been developed for laser absorption sensing of carbon
monoxide (CO) and carbon dioxide (CO 2) at extreme pressures (P> 50 atm) relevant to …

In this work, a method for experimentally determining a local characteristic velocity, $ c^* $,
is presented for purposes of analyzing rocket combustion progress based on in-situ laser …