When first tunable diode lasers were developed in the mid-1960s they found immediate
application as much needed tunable sources for high-resolution laser absorption …

Frequency-modulation (FM) spectroscopy permits high-resolution, high-sensitivity, easily
calibrated absorption measurements of atomic and molecular species and narrow spectral …

An important practical limitation to the sensitivity of frequency-modulation spectroscopy
arises because of imperfect phase modulation of the laser beam. This imperfection …

The rate coefficient of the reaction NH2+ NO→ products (R1) was determined in shock tube
experiments using frequency‐modulation absorption spectroscopy for detection of NH2 …

Explicitly time-dependent implementations of optical frequency modulation spectroscopy
have been recently applied to a wide range of problems in chemical physics. We provide a …

Advances in optical spectroscopy rely on improved detection techniques that reduce noise
to fundamental detection limits. When properly applied, frequency modulation laser …

Some limitations of tunable diode laser spectroscopy caused by laser noise, drifts and
general interferometric effects are discussed together with novel signal processing …

Sensitivity, specificity, high time resolution, cost effective simultaneous measurements of
several species and operational systems are the main requirements for in situ trace gas …

The product branching ratio of [NH2+ NO→ N2H+ OH]:[NH2+ NO→ N2+ H2O] has been
determined in the temperature range of 1340− 1670 K in a shock tube study with laser …

We present a method for recovering Doppler broadened absorption line shapes from
frequency modulated (FM) line spectra. The method of analysis is calibrated and …