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(Color) Energy-level diagram for the ERE-CARS technique. The indicated transitions identify the pump beam , Stokes beam , ultraviolet probe beam , and ERE-CARS signal beam .
(Color) Schematic diagram of ERE-CARS system. : polarizer, angles set with respect to the vertical axis; : telescope; : half-wave plate; NBDL: narrowband dye laser; : filter, composed of four , 215-nm mirrors; PMT: photomultiplier tube.
The square root of the ERE-CARS signal vs CARS signal frequency for (a) three different concentrations of in the jet flow and (b) three different concentrations of in the jet flow. The concentration was for all spectra.
Dependence of the square root of the ERE-CARS signal and the LIF signal on composition of the or jet flow. The concentration was for all ERE-CARS measurements.
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