Abstract
Nonlinear interaction of laser emission with a chemically reactive medium, in which a branched chain reaction may readily occur, has been analyzed aiming at essential intensification the contrast of photochemically induced phase gratings. For the model system CS2/O2, the degenerated four-wave mixing is theoretically studied under the assumption of CS2 photodissociation followed by subsequent secondary reactions induced by reactive photodissociation products. For varied CS2 concentrations and incident flux intensities, the dynamics of nonlinear reflection has been analyzed and same laser applications of such systems are suggested.
Highlights
Nonlinear interaction of laser emission with a chemically reactive medium, in which a branched chain reaction may readily occur, has been analyzed aiming at essential intensification the contrast of photochemically induced phase gratings
May result in a number of alterations in the system which may eventually lead to nonlinear interactions: () (2) (3)
We report on the data of theoretical study of degenerated four-wave mixing (DFWM) upon photodissociation arising due to all the four types of nonlinearity (1-4)
Summary
Nonlinear interaction of laser emission with a chemically reactive medium, in which a branched chain reaction may readily occur, has been analyzed aiming at essential intensification the contrast of photochemically induced phase gratings. Variation 6I corresponds to variations of concentrations of all the components of mixture (Ri CSz, 02, CS, S, SO, O, CO, SO2, OCS), as well as of heat release 6Q, temperature fiT and density 6p =-(6T/T)p.
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