Laser-based methods have transformed combustion diagnostics in the past few decades.
The high intensity, coherence, high spectral resolution and frequency tunability available …

Degenerate four-wave mixing (DFWM), using∼ 60 femtosecond (fs) laser pulses, is
introduced to study transition-state dynamics of chemical reactions in the gas phase. The …

Multiparameter determination in the gas phase using the versatile laser-induced grating
(LIG) technique is a challenging task due to interdependence of observables on multiple …

Nonresonant gratings have been generated in gases using as excitation beams the second-
harmonic output of a multimode Nd: YAG (yttrium aluminum garnet) laser (pulse duration τ …

We present a combined theoretical and experimental study of the application of two‐color
resonant four‐wave mixing (RFWM) to stimulated emission pumping (SEP) spectroscopy …

Resonant four-wave mixing RFWM describes a broad class of nonlinear optical techniques
that have been applied in the spectroscopy and remote sensing of stable and transient …

CH free radicals in an oxyacetylene flame at atmospheric pressure were detected by means
of the two‐color resonant four‐wave mixing technique. Ground‐state grating schemes with …

Two-color laser-induced grating spectroscopy of NO via the A 2 Σ+, v′= 0 state has been
used to study the time evolution of population gratings produced in a supersonic molecular …

We demonstrate an application of two-color resonant four-wave mixing spectroscopy to
detect highly predissociative levels of CH in the B 2 Σ− state in a hostile environment of an …

The dynamics of proton transfer in the first excited singlet state of malonaldehyde [Ã 1 B 1
(π* n)] have been investigated through the use of high-resolution degenerate four-wave …