Two-Color Four-Wave Mixing: Substantial Signal-To-Noise Ratio in the (0-0) A-X system of OHTwo-color RFWM
spectra of OH in the (0-0) vibrational band of the A-X electronic transition.
The PUMP beam is exciting two overlapping transitions (R1(8)
and R1(10)). The processes involved are shown schematically (1: SEP;
2: upward transition). The signal-to-noise ratio is approaching 500:1. |
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