Optical double resonance light modulation

Fig.16.14. Resonances in the amplitude o modulation o fluorescent light in an optical double-resonance experiment for the case u < r.

Optical double-resonance excited by modulated light. 

We have seen that in an optical double-resonance experiment the intensity of the fluorescent light is modulated at harmonics of the driving angular frequency Wq. The nutation which occurs at the angular frequency... 

Fig.16.15. Resonances observed at nutational frequencies in optical double-resonance experiments on atoms excited by intensity-modulated light. The upper part of the figure shows a plot of the relevant energy levels in the rotating coordinate system.

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