My research focuses on developing laser diagnostic techniques for combustion chemistry experiments. Diagnostics based on laser absorption have been developed for several chemical species such as CO, CO2, H2O, C2H2, C3H6 etc. Fast time resolution (microseconds) as well as high sensitivity (ppm) has been achieved through these diagnostics in high temperature/pressure environments.
The laser diagnostics have been applied to homogeneous, transient reactive systems such as shock tubes and rapid compression machines (RCM). Experiments with laser diagnostics have been used to determine the ignition delay times of fuels, fundamental reaction rate constants of important elementary reactions as well as temperature change due to heat release by fuel/air mixtures.