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

Infrared laser-absorption spectroscopy (IR-LAS) sensors play an important role in
diagnosing and characterizing a wide range of combustion systems. Of all the laser …

Optical imaging techniques are ubiquitous for the resolution of non-uniformities in gas flows.
Planar imaging techniques such as laser-induced fluorescence are well established and …

Laser absorption spectroscopy (LAS) has been rapidly developed and widely applied to
combustion diagnosis in recent decades. As a cost-effective tool for measuring multiple …

We present a practical implementation of calibration-free wavelength-modulation
spectroscopy with second harmonic detection (WMS-2f) for measurements of gas …

Tunable diode laser absorption spectroscopy (TDLAS) has become a proven method of
rapid gas diagnostics. In the present review an overview of the state of the art of TDL-based …

Laser diagnostic techniques play a large and growing role in combustion research and
development. Here we highlight three areas where quantitative sensing based on laser …

The development and initial demonstration of a scanned-wavelength, first-harmonic-
normalized, wavelength-modulation spectroscopy with nf detection (scanned-WMS-nf/1f) …

The availability of new lasers in the nearand mid infrared spectral region has led to the
development of sensors for gas measurements that are now applied extensively in the …

A portable laser sensor for trace ammonia (NH 3) is developed based on near-infrared laser
absorption spectroscopy. Tunable diode laser absorption spectroscopy in conjunction with …